@SIG@ or @DATE@ is replaced to DateTimeMacro.
[[DateTime(@date@)]]
[[DateTime(2003-12-31T16:06:00)]]
2025/10/16 12:18:07 GMT
2025-10-16 12:18:07
2004-10-11 18:16:39
2025-10-16 12:18:07
2004-10-11 18:16:39
[[DateTime(2003-12-31T16:06:00)]]