"Sun, 16 Feb 2025 14:55:07"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250216
Only TIME
14:55:07
General datetime
2025-02-16 14:55:07Z
For Database
2025-02-16 14:55:07
For HTTP1.1
Sun, 16 Feb 2025 14:55:07 GMT