diff --git a/package-lock.json b/package-lock.json
index 1259061..fa4521f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,6 +8,7 @@
       "name": "timetable-v2",
       "version": "0.0.0",
       "dependencies": {
+        "dayjs": "^1.11.1",
         "vue": "^3.2.33",
         "vue-router": "^4.0.14"
       },
@@ -381,6 +382,11 @@
       "resolved": "https://registry.npmjs.org/csstype/-/csstype-2.6.20.tgz",
       "integrity": "sha512-/WwNkdXfckNgw6S5R125rrW8ez139lBHWouiBvX8dfMFtcn6V81REDqnH7+CRpRipfYlyU1CmOnOxrmGcFOjeA=="
     },
+    "node_modules/dayjs": {
+      "version": "1.11.1",
+      "resolved": "https://registry.npmjs.org/dayjs/-/dayjs-1.11.1.tgz",
+      "integrity": "sha512-ER7EjqVAMkRRsxNCC5YqJ9d9VQYuWdGt7aiH2qA5R5wt8ZmWaP2dLUSIK6y/kVzLMlmh1Tvu5xUf4M/wdGJ5KA=="
+    },
     "node_modules/debug": {
       "version": "4.3.4",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
@@ -2148,6 +2154,11 @@
       "resolved": "https://registry.npmjs.org/csstype/-/csstype-2.6.20.tgz",
       "integrity": "sha512-/WwNkdXfckNgw6S5R125rrW8ez139lBHWouiBvX8dfMFtcn6V81REDqnH7+CRpRipfYlyU1CmOnOxrmGcFOjeA=="
     },
+    "dayjs": {
+      "version": "1.11.1",
+      "resolved": "https://registry.npmjs.org/dayjs/-/dayjs-1.11.1.tgz",
+      "integrity": "sha512-ER7EjqVAMkRRsxNCC5YqJ9d9VQYuWdGt7aiH2qA5R5wt8ZmWaP2dLUSIK6y/kVzLMlmh1Tvu5xUf4M/wdGJ5KA=="
+    },
     "debug": {
       "version": "4.3.4",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
diff --git a/package.json b/package.json
index ab29719..8d6c007 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
     "lint": "eslint . --ext .vue,.js,.jsx,.cjs,.mjs --fix --ignore-path .gitignore"
   },
   "dependencies": {
+    "dayjs": "^1.11.1",
     "vue": "^3.2.33",
     "vue-router": "^4.0.14"
   },