"Sun, 05 Jan 2025 08:21:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250105
Only TIME
08:21:21
General datetime
2025-01-05 08:21:21Z
For Database
2025-01-05 08:21:21
For HTTP1.1
Sun, 05 Jan 2025 08:21:21 GMT