Add time library

.env.example

@@ -1,2 +1,6 @@
 HP_ENV=
 HP_URL=
+MICROCMS_SERVICE_DOMAIN=
+MICROCMS_API_KEY=
+CLOUDFLARE_ZONE_ID=
+CLOUDFLARE_API_KEY=

src/lib/time.lisp

@@ -0,0 +1,26 @@
+(defpackage #:hp/lib/time
+  (:use #:cl)
+  (:import-from #:local-time
+                #:reread-timezone-repository
+                #:find-timezone-by-location-name
+                #:parse-timestring
+                #:format-timestring)
+  (:export #:datetime
+           #:jp-datetime))
+(in-package #:hp/lib/time)
+
+(reread-timezone-repository)
+(setf local-time:*default-timezone*
+      (find-timezone-by-location-name "Asia/Tokyo"))
+
+(defun datetime (timestring)
+  (format-timestring nil
+                     (parse-timestring timestring)
+                     :format '(:year "-" (:month 2) "-" (:day 2) " "
+                               (:hour 2) ":" (:min 2))))
+
+(defun jp-datetime (timestring)
+  (format-timestring nil
+                     (parse-timestring timestring)
+                     :format '(:year "年" :month "月" :day "日" " "
+                               :hour "時" :min "分")))