"Mon, 27 Jan 2025 08:21:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250127
Only TIME
08:21:18
General datetime
2025-01-27 08:21:18Z
For Database
2025-01-27 08:21:18
For HTTP1.1
Mon, 27 Jan 2025 08:21:18 GMT