"Mon, 20 Jan 2025 08:21:07"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250120
Only TIME
08:21:07
General datetime
2025-01-20 08:21:07Z
For Database
2025-01-20 08:21:07
For HTTP1.1
Mon, 20 Jan 2025 08:21:07 GMT