"Mon, 13 Jan 2025 08:21:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250113
Only TIME
08:21:45
General datetime
2025-01-13 08:21:45Z
For Database
2025-01-13 08:21:45
For HTTP1.1
Mon, 13 Jan 2025 08:21:45 GMT