diff --git a/.prettierrc b/.prettierrc
new file mode 100644
index 0000000..a7056f5
--- /dev/null
+++ b/.prettierrc
@@ -0,0 +1,3 @@
+{
+  "semi": false
+}
\ No newline at end of file
diff --git a/package.json b/package.json
index 7967a00..b49ce76 100644
--- a/package.json
+++ b/package.json
@@ -6,15 +6,19 @@
   "scripts": {
     "dev": "vite",
     "build": "vue-tsc && vite build",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "test": "vitest"
   },
   "dependencies": {
+    "luxon": "^3.3.0",
     "vue": "^3.2.45"
   },
   "devDependencies": {
+    "@types/luxon": "^3.2.0",
     "@vitejs/plugin-vue": "^4.0.0",
     "typescript": "^4.9.3",
     "vite": "^4.1.0",
+    "vitest": "^0.29.2",
     "vue-tsc": "^1.0.24"
   }
 }
\ No newline at end of file
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index b2a6aab..670beb1 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1,19 +1,25 @@
 lockfileVersion: 5.4
 
 specifiers:
+  '@types/luxon': ^3.2.0
   '@vitejs/plugin-vue': ^4.0.0
+  luxon: ^3.3.0
   typescript: ^4.9.3
   vite: ^4.1.0
+  vitest: ^0.29.2
   vue: ^3.2.45
   vue-tsc: ^1.0.24
 
 dependencies:
+  luxon: 3.3.0
   vue: 3.2.47
 
 devDependencies:
+  '@types/luxon': 3.2.0
   '@vitejs/plugin-vue': 4.0.0_vite@4.1.3+vue@3.2.47
   typescript: 4.9.5
   vite: 4.1.3
+  vitest: 0.29.2
   vue-tsc: 1.1.5_typescript@4.9.5
 
 packages:
@@ -239,6 +245,24 @@ packages:
     dev: true
     optional: true
 
+  /@types/chai-subset/1.3.3:
+    resolution: {integrity: sha512-frBecisrNGz+F4T6bcc+NLeolfiojh5FxW2klu669+8BARtyQv2C/GkNW6FUodVe4BroGMP/wER/YDGc7rEllw==}
+    dependencies:
+      '@types/chai': 4.3.4
+    dev: true
+
+  /@types/chai/4.3.4:
+    resolution: {integrity: sha512-KnRanxnpfpjUTqTCXslZSEdLfXExwgNxYPdiO2WGUj8+HDjFi8R3k5RVKPeSCzLjCcshCAtVO2QBbVuAV4kTnw==}
+    dev: true
+
+  /@types/luxon/3.2.0:
+    resolution: {integrity: sha512-lGmaGFoaXHuOLXFvuju2bfvZRqxAqkHPx9Y9IQdQABrinJJshJwfNCKV+u7rR3kJbiqfTF/NhOkcxxAFrObyaA==}
+    dev: true
+
+  /@types/node/18.15.1:
+    resolution: {integrity: sha512-U2TWca8AeHSmbpi314QBESRk7oPjSZjDsR+c+H4ECC1l+kFgpZf8Ydhv3SJpPy51VyZHHqxlb6mTTqYNNRVAIw==}
+    dev: true
+
   /@vitejs/plugin-vue/4.0.0_vite@4.1.3+vue@3.2.47:
     resolution: {integrity: sha512-e0X4jErIxAB5oLtDqbHvHpJe/uWNkdpYV83AOG2xo2tEVSzCzewgJMtREZM30wXnM5ls90hxiOtAuVU6H5JgbA==}
     engines: {node: ^14.18.0 || >=16.0.0}
@@ -250,6 +274,38 @@ packages:
       vue: 3.2.47
     dev: true
 
+  /@vitest/expect/0.29.2:
+    resolution: {integrity: sha512-wjrdHB2ANTch3XKRhjWZN0UueFocH0cQbi2tR5Jtq60Nb3YOSmakjdAvUa2JFBu/o8Vjhj5cYbcMXkZxn1NzmA==}
+    dependencies:
+      '@vitest/spy': 0.29.2
+      '@vitest/utils': 0.29.2
+      chai: 4.3.7
+    dev: true
+
+  /@vitest/runner/0.29.2:
+    resolution: {integrity: sha512-A1P65f5+6ru36AyHWORhuQBJrOOcmDuhzl5RsaMNFe2jEkoj0faEszQS4CtPU/LxUYVIazlUtZTY0OEZmyZBnA==}
+    dependencies:
+      '@vitest/utils': 0.29.2
+      p-limit: 4.0.0
+      pathe: 1.1.0
+    dev: true
+
+  /@vitest/spy/0.29.2:
+    resolution: {integrity: sha512-Hc44ft5kaAytlGL2PyFwdAsufjbdOvHklwjNy/gy/saRbg9Kfkxfh+PklLm1H2Ib/p586RkQeNFKYuJInUssyw==}
+    dependencies:
+      tinyspy: 1.1.1
+    dev: true
+
+  /@vitest/utils/0.29.2:
+    resolution: {integrity: sha512-F14/Uc+vCdclStS2KEoXJlOLAEyqRhnw0gM27iXw9bMTcyKRPJrQ+rlC6XZ125GIPvvKYMPpVxNhiou6PsEeYQ==}
+    dependencies:
+      cli-truncate: 3.1.0
+      diff: 5.1.0
+      loupe: 2.3.6
+      picocolors: 1.0.0
+      pretty-format: 27.5.1
+    dev: true
+
   /@volar/language-core/1.2.0-alpha.17:
     resolution: {integrity: sha512-nTJfag+EsjWPaefp7JxQ3uJIe0pLdTEfR1ZmaJgn4yKA2FkturuLdlHk3Nj3HjhAhoRDfF7S1BZFDnMjZCAegw==}
     dependencies:
@@ -342,7 +398,6 @@ packages:
     dependencies:
       '@vue/reactivity': 3.2.47
       '@vue/shared': 3.2.47
-    dev: false
 
   /@vue/runtime-dom/3.2.47:
     resolution: {integrity: sha512-ArXrFTjS6TsDei4qwNvgrdmHtD930KgSKGhS5M+j8QxXrDJYLqYw4RRcDy1bz1m1wMmb6j+zGLifdVHtkXA7gA==}
@@ -350,7 +405,6 @@ packages:
       '@vue/runtime-core': 3.2.47
       '@vue/shared': 3.2.47
       csstype: 2.6.21
-    dev: false
 
   /@vue/server-renderer/3.2.47_vue@3.2.47:
     resolution: {integrity: sha512-dN9gc1i8EvmP9RCzvneONXsKfBRgqFeFZLurmHOveL7oH6HiFXJw5OGu294n1nHc/HMgTy6LulU/tv5/A7f/LA==}
@@ -360,11 +414,45 @@ packages:
       '@vue/compiler-ssr': 3.2.47
       '@vue/shared': 3.2.47
       vue: 3.2.47
-    dev: false
 
   /@vue/shared/3.2.47:
     resolution: {integrity: sha512-BHGyyGN3Q97EZx0taMQ+OLNuZcW3d37ZEVmEAyeoA9ERdGvm9Irc/0Fua8SNyOtV1w6BS4q25wbMzJujO9HIfQ==}
 
+  /acorn-walk/8.2.0:
+    resolution: {integrity: sha512-k+iyHEuPgSw6SbuDpGQM+06HQUa04DZ3o+F6CSzXMvvI5KMvnaEqXe+YVe555R9nn6GPt404fos4wcgpw12SDA==}
+    engines: {node: '>=0.4.0'}
+    dev: true
+
+  /acorn/8.8.2:
+    resolution: {integrity: sha512-xjIYgE8HBrkpd/sJqOGNspf8uHG+NOHGOw6a/Urj8taM2EXfdNAH2oFcPeIFfsv3+kz/mJrS5VuMqbNLjCa2vw==}
+    engines: {node: '>=0.4.0'}
+    hasBin: true
+    dev: true
+
+  /ansi-regex/5.0.1:
+    resolution: {integrity: sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==}
+    engines: {node: '>=8'}
+    dev: true
+
+  /ansi-regex/6.0.1:
+    resolution: {integrity: sha512-n5M855fKb2SsfMIiFFoVrABHJC8QtHwVx+mHWP3QcEqBHYienj5dHSgjbxtC0WEZXYt4wcD6zrQElDPhFuZgfA==}
+    engines: {node: '>=12'}
+    dev: true
+
+  /ansi-styles/5.2.0:
+    resolution: {integrity: sha512-Cxwpt2SfTzTtXcfOlzGEee8O+c+MmUgGrNiBcXnuWxuFJHe6a5Hz7qwhwe5OgaSYI0IJvkLqWX1ASG+cJOkEiA==}
+    engines: {node: '>=10'}
+    dev: true
+
+  /ansi-styles/6.2.1:
+    resolution: {integrity: sha512-bN798gFfQX+viw3R7yrGWRqnrN2oRkEkUjjl4JNn4E8GxxbjtG3FbrEIIY3l8/hrwUwIeCZvi4QuOTP4MErVug==}
+    engines: {node: '>=12'}
+    dev: true
+
+  /assertion-error/1.1.0:
+    resolution: {integrity: sha512-jgsaNduz+ndvGyFt3uSuWqvy4lCnIJiovtouQN5JZHOKCS2QuhEdbcQHFhVksz2N2U9hXJo8odG7ETyWlEeuDw==}
+    dev: true
+
   /balanced-match/1.0.2:
     resolution: {integrity: sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==}
     dev: true
@@ -375,14 +463,75 @@ packages:
       balanced-match: 1.0.2
     dev: true
 
+  /cac/6.7.14:
+    resolution: {integrity: sha512-b6Ilus+c3RrdDk+JhLKUAQfzzgLEPy6wcXqS7f/xe1EETvsDP6GORG7SFuOs6cID5YkqchW/LXZbX5bc8j7ZcQ==}
+    engines: {node: '>=8'}
+    dev: true
+
+  /chai/4.3.7:
+    resolution: {integrity: sha512-HLnAzZ2iupm25PlN0xFreAlBA5zaBSv3og0DdeGA4Ar6h6rJ3A0rolRUKJhSF2V10GZKDgWF/VmAEsNWjCRB+A==}
+    engines: {node: '>=4'}
+    dependencies:
+      assertion-error: 1.1.0
+      check-error: 1.0.2
+      deep-eql: 4.1.3
+      get-func-name: 2.0.0
+      loupe: 2.3.6
+      pathval: 1.1.1
+      type-detect: 4.0.8
+    dev: true
+
+  /check-error/1.0.2:
+    resolution: {integrity: sha512-BrgHpW9NURQgzoNyjfq0Wu6VFO6D7IZEmJNdtgNqpzGG8RuNFHt2jQxWlAs4HMe119chBnv+34syEZtc6IhLtA==}
+    dev: true
+
+  /cli-truncate/3.1.0:
+    resolution: {integrity: sha512-wfOBkjXteqSnI59oPcJkcPl/ZmwvMMOj340qUIY1SKZCv0B9Cf4D4fAucRkIKQmsIuYK3x1rrgU7MeGRruiuiA==}
+    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
+    dependencies:
+      slice-ansi: 5.0.0
+      string-width: 5.1.2
+    dev: true
+
   /csstype/2.6.21:
     resolution: {integrity: sha512-Z1PhmomIfypOpoMjRQB70jfvy/wxT50qW08YXO5lMIJkrdq4yOTR+AW7FqutScmB9NkLwxo+jU+kZLbofZZq/w==}
-    dev: false
 
   /de-indent/1.0.2:
     resolution: {integrity: sha512-e/1zu3xH5MQryN2zdVaF0OrdNLUbvWxzMbi+iNA6Bky7l1RoP8a2fIbRocyHclXt/arDrrR6lL3TqFD9pMQTsg==}
     dev: true
 
+  /debug/4.3.4:
+    resolution: {integrity: sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==}
+    engines: {node: '>=6.0'}
+    peerDependencies:
+      supports-color: '*'
+    peerDependenciesMeta:
+      supports-color:
+        optional: true
+    dependencies:
+      ms: 2.1.2
+    dev: true
+
+  /deep-eql/4.1.3:
+    resolution: {integrity: sha512-WaEtAOpRA1MQ0eohqZjpGD8zdI0Ovsm8mmFhaDN8dvDZzyoUMcYDnf5Y6iu7HTXxf8JDS23qWa4a+hKCDyOPzw==}
+    engines: {node: '>=6'}
+    dependencies:
+      type-detect: 4.0.8
+    dev: true
+
+  /diff/5.1.0:
+    resolution: {integrity: sha512-D+mk+qE8VC/PAUrlAU34N+VfXev0ghe5ywmpqrawphmVZc1bEfn56uo9qpyGp1p4xpzOHkSW4ztBd6L7Xx4ACw==}
+    engines: {node: '>=0.3.1'}
+    dev: true
+
+  /eastasianwidth/0.2.0:
+    resolution: {integrity: sha512-I88TYZWc9XiYHRQ4/3c5rjjfgkjhLyW2luGIheGERbNQ6OY7yTybanSpDXZa8y7VUP9YmDcYa+eyq4ca7iLqWA==}
+    dev: true
+
+  /emoji-regex/9.2.2:
+    resolution: {integrity: sha512-L18DaJsXSUk2+42pv8mLs5jJT2hqFkFE4j21wOmgbUqsZ2hL72NsUU785g9RXgo3s0ZNgVl42TiHp3ZtOv/Vyg==}
+    dev: true
+
   /esbuild/0.16.17:
     resolution: {integrity: sha512-G8LEkV0XzDMNwXKgM0Jwu3nY3lSTwSGY6XbxM9cr9+s0T/qSV1q1JVPBGzm3dcjhCic9+emZDmMffkwgPeOeLg==}
     engines: {node: '>=12'}
@@ -428,6 +577,10 @@ packages:
     resolution: {integrity: sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==}
     dev: true
 
+  /get-func-name/2.0.0:
+    resolution: {integrity: sha512-Hm0ixYtaSZ/V7C8FJrtZIuBBI+iSgL+1Aq82zSu8VQNB4S3Gk8e7Qs3VwBDJAhmRZcFqkl3tQu36g/Foh5I5ig==}
+    dev: true
+
   /has/1.0.3:
     resolution: {integrity: sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==}
     engines: {node: '>= 0.4.0'}
@@ -446,6 +599,31 @@ packages:
       has: 1.0.3
     dev: true
 
+  /is-fullwidth-code-point/4.0.0:
+    resolution: {integrity: sha512-O4L094N2/dZ7xqVdrXhh9r1KODPJpFms8B5sGdJLPy664AgvXsreZUyCQQNItZRDlYug4xStLjNp/sz3HvBowQ==}
+    engines: {node: '>=12'}
+    dev: true
+
+  /jsonc-parser/3.2.0:
+    resolution: {integrity: sha512-gfFQZrcTc8CnKXp6Y4/CBT3fTc0OVuDofpre4aEeEpSBPV5X5v4+Vmx+8snU7RLPrNHPKSgLxGo9YuQzz20o+w==}
+    dev: true
+
+  /local-pkg/0.4.3:
+    resolution: {integrity: sha512-SFppqq5p42fe2qcZQqqEOiVRXl+WCP1MdT6k7BDEW1j++sp5fIY+/fdRQitvKgB5BrBcmrs5m/L0v2FrU5MY1g==}
+    engines: {node: '>=14'}
+    dev: true
+
+  /loupe/2.3.6:
+    resolution: {integrity: sha512-RaPMZKiMy8/JruncMU5Bt6na1eftNoo++R4Y+N2FrxkDVTrGvcyzFTsaGif4QTeKESheMGegbhw6iUAq+5A8zA==}
+    dependencies:
+      get-func-name: 2.0.0
+    dev: true
+
+  /luxon/3.3.0:
+    resolution: {integrity: sha512-An0UCfG/rSiqtAIiBPO0Y9/zAnHUZxAMiCpTd5h2smgsj7GGmcenvrvww2cqNA8/4A5ZrD1gJpHN2mIHZQF+Mg==}
+    engines: {node: '>=12'}
+    dev: false
+
   /magic-string/0.25.9:
     resolution: {integrity: sha512-RmF0AsMzgt25qzqqLc1+MbHmhdx0ojF2Fvs4XnOqz2ZOBXzzkEwc/dJQZCYHAn7v1jbVOjAZfK8msRn4BxO4VQ==}
     dependencies:
@@ -458,6 +636,19 @@ packages:
       brace-expansion: 2.0.1
     dev: true
 
+  /mlly/1.2.0:
+    resolution: {integrity: sha512-+c7A3CV0KGdKcylsI6khWyts/CYrGTrRVo4R/I7u/cUsy0Conxa6LUhiEzVKIw14lc2L5aiO4+SeVe4TeGRKww==}
+    dependencies:
+      acorn: 8.8.2
+      pathe: 1.1.0
+      pkg-types: 1.0.2
+      ufo: 1.1.1
+    dev: true
+
+  /ms/2.1.2:
+    resolution: {integrity: sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==}
+    dev: true
+
   /muggle-string/0.2.2:
     resolution: {integrity: sha512-YVE1mIJ4VpUMqZObFndk9CJu6DBJR/GB13p3tXuNbwD4XExaI5EOuRl6BHeIDxIqXZVxSfAC+y6U1Z/IxCfKUg==}
     dev: true
@@ -467,13 +658,36 @@ packages:
     engines: {node: ^10 || ^12 || ^13.7 || ^14 || >=15.0.1}
     hasBin: true
 
+  /p-limit/4.0.0:
+    resolution: {integrity: sha512-5b0R4txpzjPWVw/cXXUResoD4hb6U/x9BH08L7nw+GN1sezDzPdxeRvpc9c433fZhBan/wusjbCsqwqm4EIBIQ==}
+    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
+    dependencies:
+      yocto-queue: 1.0.0
+    dev: true
+
   /path-parse/1.0.7:
     resolution: {integrity: sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==}
     dev: true
 
+  /pathe/1.1.0:
+    resolution: {integrity: sha512-ODbEPR0KKHqECXW1GoxdDb+AZvULmXjVPy4rt+pGo2+TnjJTIPJQSVS6N63n8T2Ip+syHhbn52OewKicV0373w==}
+    dev: true
+
+  /pathval/1.1.1:
+    resolution: {integrity: sha512-Dp6zGqpTdETdR63lehJYPeIOqpiNBNtc7BpWSLrOje7UaIsE5aY92r/AunQA7rsXvet3lrJ3JnZX29UPTKXyKQ==}
+    dev: true
+
   /picocolors/1.0.0:
     resolution: {integrity: sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==}
 
+  /pkg-types/1.0.2:
+    resolution: {integrity: sha512-hM58GKXOcj8WTqUXnsQyJYXdeAPbythQgEF3nTcEo+nkD49chjQ9IKm/QJy9xf6JakXptz86h7ecP2024rrLaQ==}
+    dependencies:
+      jsonc-parser: 3.2.0
+      mlly: 1.2.0
+      pathe: 1.1.0
+    dev: true
+
   /postcss/8.4.21:
     resolution: {integrity: sha512-tP7u/Sn/dVxK2NnruI4H9BG+x+Wxz6oeZ1cJ8P6G/PZY0IKk4k/63TDsQf2kQq3+qoJeLm2kIBUNlZe3zgb4Zg==}
     engines: {node: ^10 || ^12 || >=14}
@@ -482,6 +696,19 @@ packages:
       picocolors: 1.0.0
       source-map-js: 1.0.2
 
+  /pretty-format/27.5.1:
+    resolution: {integrity: sha512-Qb1gy5OrP5+zDf2Bvnzdl3jsTf1qXVMazbvCoKhtKqVs4/YK4ozX4gKQJJVyNe+cajNPn0KoC0MC3FUmaHWEmQ==}
+    engines: {node: ^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0}
+    dependencies:
+      ansi-regex: 5.0.1
+      ansi-styles: 5.2.0
+      react-is: 17.0.2
+    dev: true
+
+  /react-is/17.0.2:
+    resolution: {integrity: sha512-w2GsyukL62IJnlaff/nRegPQR94C/XXamvMWmSHRJ4y7Ts/4ocGRmTHvOs8PSE6pB3dWOrD/nueuU5sduBsQ4w==}
+    dev: true
+
   /resolve/1.22.1:
     resolution: {integrity: sha512-nBpuuYuY5jFsli/JIs1oldw6fOQCBioohqWZg/2hiaOybXOft4lonv85uDOKXdf8rhyK159cxU5cDcK/NKk8zw==}
     hasBin: true
@@ -499,6 +726,18 @@ packages:
       fsevents: 2.3.2
     dev: true
 
+  /siginfo/2.0.0:
+    resolution: {integrity: sha512-ybx0WO1/8bSBLEWXZvEd7gMW3Sn3JFlW3TvX1nREbDLRNQNaeNN8WK0meBwPdAaOI7TtRRRJn/Es1zhrrCHu7g==}
+    dev: true
+
+  /slice-ansi/5.0.0:
+    resolution: {integrity: sha512-FC+lgizVPfie0kkhqUScwRu1O/lF6NOgJmlCgK+/LYxDCTk8sGelYaHDhFcDN+Sn3Cv+3VSa4Byeo+IMCzpMgQ==}
+    engines: {node: '>=12'}
+    dependencies:
+      ansi-styles: 6.2.1
+      is-fullwidth-code-point: 4.0.0
+    dev: true
+
   /source-map-js/1.0.2:
     resolution: {integrity: sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==}
     engines: {node: '>=0.10.0'}
@@ -511,21 +750,95 @@ packages:
     resolution: {integrity: sha512-9NykojV5Uih4lgo5So5dtw+f0JgJX30KCNI8gwhz2J9A15wD0Ml6tjHKwf6fTSa6fAdVBdZeNOs9eJ71qCk8vA==}
     deprecated: Please use @jridgewell/sourcemap-codec instead
 
+  /stackback/0.0.2:
+    resolution: {integrity: sha512-1XMJE5fQo1jGH6Y/7ebnwPOBEkIEnT4QF32d5R1+VXdXveM0IBMJt8zfaxX1P3QhVwrYe+576+jkANtSS2mBbw==}
+    dev: true
+
+  /std-env/3.3.2:
+    resolution: {integrity: sha512-uUZI65yrV2Qva5gqE0+A7uVAvO40iPo6jGhs7s8keRfHCmtg+uB2X6EiLGCI9IgL1J17xGhvoOqSz79lzICPTA==}
+    dev: true
+
+  /string-width/5.1.2:
+    resolution: {integrity: sha512-HnLOCR3vjcY8beoNLtcjZ5/nxn2afmME6lhrDrebokqMap+XbeW8n9TXpPDOqdGK5qcI3oT0GKTW6wC7EMiVqA==}
+    engines: {node: '>=12'}
+    dependencies:
+      eastasianwidth: 0.2.0
+      emoji-regex: 9.2.2
+      strip-ansi: 7.0.1
+    dev: true
+
+  /strip-ansi/7.0.1:
+    resolution: {integrity: sha512-cXNxvT8dFNRVfhVME3JAe98mkXDYN2O1l7jmcwMnOslDeESg1rF/OZMtK0nRAhiari1unG5cD4jG3rapUAkLbw==}
+    engines: {node: '>=12'}
+    dependencies:
+      ansi-regex: 6.0.1
+    dev: true
+
+  /strip-literal/1.0.1:
+    resolution: {integrity: sha512-QZTsipNpa2Ppr6v1AmJHESqJ3Uz247MUS0OjrnnZjFAvEoWqxuyFuXn2xLgMtRnijJShAa1HL0gtJyUs7u7n3Q==}
+    dependencies:
+      acorn: 8.8.2
+    dev: true
+
   /supports-preserve-symlinks-flag/1.0.0:
     resolution: {integrity: sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==}
     engines: {node: '>= 0.4'}
     dev: true
 
+  /tinybench/2.4.0:
+    resolution: {integrity: sha512-iyziEiyFxX4kyxSp+MtY1oCH/lvjH3PxFN8PGCDeqcZWAJ/i+9y+nL85w99PxVzrIvew/GSkSbDYtiGVa85Afg==}
+    dev: true
+
+  /tinypool/0.3.1:
+    resolution: {integrity: sha512-zLA1ZXlstbU2rlpA4CIeVaqvWq41MTWqLY3FfsAXgC8+f7Pk7zroaJQxDgxn1xNudKW6Kmj4808rPFShUlIRmQ==}
+    engines: {node: '>=14.0.0'}
+    dev: true
+
+  /tinyspy/1.1.1:
+    resolution: {integrity: sha512-UVq5AXt/gQlti7oxoIg5oi/9r0WpF7DGEVwXgqWSMmyN16+e3tl5lIvTaOpJ3TAtu5xFzWccFRM4R5NaWHF+4g==}
+    engines: {node: '>=14.0.0'}
+    dev: true
+
   /to-fast-properties/2.0.0:
     resolution: {integrity: sha512-/OaKK0xYrs3DmxRYqL/yDc+FxFUVYhDlXMhRmv3z915w2HF1tnN1omB354j8VUGO/hbRzyD6Y3sA7v7GS/ceog==}
     engines: {node: '>=4'}
 
+  /type-detect/4.0.8:
+    resolution: {integrity: sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==}
+    engines: {node: '>=4'}
+    dev: true
+
   /typescript/4.9.5:
     resolution: {integrity: sha512-1FXk9E2Hm+QzZQ7z+McJiHL4NW1F2EzMu9Nq9i3zAaGqibafqYwCVU6WyWAuyQRRzOlxou8xZSyXLEN8oKj24g==}
     engines: {node: '>=4.2.0'}
     hasBin: true
     dev: true
 
+  /ufo/1.1.1:
+    resolution: {integrity: sha512-MvlCc4GHrmZdAllBc0iUDowff36Q9Ndw/UzqmEKyrfSzokTd9ZCy1i+IIk5hrYKkjoYVQyNbrw7/F8XJ2rEwTg==}
+    dev: true
+
+  /vite-node/0.29.2_@types+node@18.15.1:
+    resolution: {integrity: sha512-5oe1z6wzI3gkvc4yOBbDBbgpiWiApvuN4P55E8OI131JGrSuo4X3SOZrNmZYo4R8Zkze/dhi572blX0zc+6SdA==}
+    engines: {node: '>=v14.16.0'}
+    hasBin: true
+    dependencies:
+      cac: 6.7.14
+      debug: 4.3.4
+      mlly: 1.2.0
+      pathe: 1.1.0
+      picocolors: 1.0.0
+      vite: 4.1.3_@types+node@18.15.1
+    transitivePeerDependencies:
+      - '@types/node'
+      - less
+      - sass
+      - stylus
+      - sugarss
+      - supports-color
+      - terser
+    dev: true
+
   /vite/4.1.3:
     resolution: {integrity: sha512-0Zqo4/Fr/swSOBmbl+HAAhOjrqNwju+yTtoe4hQX9UsARdcuc9njyOdr6xU0DDnV7YP0RT6mgTTOiRtZgxfCxA==}
     engines: {node: ^14.18.0 || >=16.0.0}
@@ -559,6 +872,95 @@ packages:
       fsevents: 2.3.2
     dev: true
 
+  /vite/4.1.3_@types+node@18.15.1:
+    resolution: {integrity: sha512-0Zqo4/Fr/swSOBmbl+HAAhOjrqNwju+yTtoe4hQX9UsARdcuc9njyOdr6xU0DDnV7YP0RT6mgTTOiRtZgxfCxA==}
+    engines: {node: ^14.18.0 || >=16.0.0}
+    hasBin: true
+    peerDependencies:
+      '@types/node': '>= 14'
+      less: '*'
+      sass: '*'
+      stylus: '*'
+      sugarss: '*'
+      terser: ^5.4.0
+    peerDependenciesMeta:
+      '@types/node':
+        optional: true
+      less:
+        optional: true
+      sass:
+        optional: true
+      stylus:
+        optional: true
+      sugarss:
+        optional: true
+      terser:
+        optional: true
+    dependencies:
+      '@types/node': 18.15.1
+      esbuild: 0.16.17
+      postcss: 8.4.21
+      resolve: 1.22.1
+      rollup: 3.17.2
+    optionalDependencies:
+      fsevents: 2.3.2
+    dev: true
+
+  /vitest/0.29.2:
+    resolution: {integrity: sha512-ydK9IGbAvoY8wkg29DQ4ivcVviCaUi3ivuPKfZEVddMTenFHUfB8EEDXQV8+RasEk1ACFLgMUqAaDuQ/Nk+mQA==}
+    engines: {node: '>=v14.16.0'}
+    hasBin: true
+    peerDependencies:
+      '@edge-runtime/vm': '*'
+      '@vitest/browser': '*'
+      '@vitest/ui': '*'
+      happy-dom: '*'
+      jsdom: '*'
+    peerDependenciesMeta:
+      '@edge-runtime/vm':
+        optional: true
+      '@vitest/browser':
+        optional: true
+      '@vitest/ui':
+        optional: true
+      happy-dom:
+        optional: true
+      jsdom:
+        optional: true
+    dependencies:
+      '@types/chai': 4.3.4
+      '@types/chai-subset': 1.3.3
+      '@types/node': 18.15.1
+      '@vitest/expect': 0.29.2
+      '@vitest/runner': 0.29.2
+      '@vitest/spy': 0.29.2
+      '@vitest/utils': 0.29.2
+      acorn: 8.8.2
+      acorn-walk: 8.2.0
+      cac: 6.7.14
+      chai: 4.3.7
+      debug: 4.3.4
+      local-pkg: 0.4.3
+      pathe: 1.1.0
+      picocolors: 1.0.0
+      source-map: 0.6.1
+      std-env: 3.3.2
+      strip-literal: 1.0.1
+      tinybench: 2.4.0
+      tinypool: 0.3.1
+      tinyspy: 1.1.1
+      vite: 4.1.3_@types+node@18.15.1
+      vite-node: 0.29.2_@types+node@18.15.1
+      why-is-node-running: 2.2.2
+    transitivePeerDependencies:
+      - less
+      - sass
+      - stylus
+      - sugarss
+      - supports-color
+      - terser
+    dev: true
+
   /vue-template-compiler/2.7.14:
     resolution: {integrity: sha512-zyA5Y3ArvVG0NacJDkkzJuPQDF8RFeRlzV2vLeSnhSpieO6LK2OVbdLPi5MPPs09Ii+gMO8nY4S3iKQxBxDmWQ==}
     dependencies:
@@ -585,4 +987,17 @@ packages:
       '@vue/runtime-dom': 3.2.47
       '@vue/server-renderer': 3.2.47_vue@3.2.47
       '@vue/shared': 3.2.47
-    dev: false
+
+  /why-is-node-running/2.2.2:
+    resolution: {integrity: sha512-6tSwToZxTOcotxHeA+qGCq1mVzKR3CwcJGmVcY+QE8SHy6TnpFnh8PAvPNHYr7EcuVeG0QSMxtYCuO1ta/G/oA==}
+    engines: {node: '>=8'}
+    hasBin: true
+    dependencies:
+      siginfo: 2.0.0
+      stackback: 0.0.2
+    dev: true
+
+  /yocto-queue/1.0.0:
+    resolution: {integrity: sha512-9bnSc/HEW2uRy67wc+T8UwauLuPJVn28jb+GtJY16iiKWyvmYJRXVT4UamsAEGQfPohgr2q4Tq0sQbQlxTfi1g==}
+    engines: {node: '>=12.20'}
+    dev: true
diff --git a/src/services/time-until.test.ts b/src/services/time-until.test.ts
new file mode 100644
index 0000000..af402a8
--- /dev/null
+++ b/src/services/time-until.test.ts
@@ -0,0 +1,7 @@
+import { describe, it, expect } from "vitest"
+
+describe("time until service", () => {
+  it("test", () => {
+    expect(true).toBe(true)
+  })
+})
diff --git a/src/services/time-until.ts b/src/services/time-until.ts
new file mode 100644
index 0000000..e69de29