"Sun, 12 Jan 2025 14:42:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250112
Only TIME
14:42:56
General datetime
2025-01-12 14:42:56Z
For Database
2025-01-12 14:42:56
For HTTP1.1
Sun, 12 Jan 2025 14:42:56 GMT