"Sun, 12 Jan 2025 21:36:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250112
Only TIME
21:36:09
General datetime
2025-01-12 21:36:09Z
For Database
2025-01-12 21:36:09
For HTTP1.1
Sun, 12 Jan 2025 21:36:09 GMT