"Mon, 20 Jan 2025 14:54:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250120
Only TIME
14:54:23
General datetime
2025-01-20 14:54:23Z
For Database
2025-01-20 14:54:23
For HTTP1.1
Mon, 20 Jan 2025 14:54:23 GMT