"Mon, 13 Jan 2025 08:21:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250113
Only TIME
08:21:20
General datetime
2025-01-13 08:21:20Z
For Database
2025-01-13 08:21:20
For HTTP1.1
Mon, 13 Jan 2025 08:21:20 GMT