"Sun, 16 Feb 2025 05:39:38"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250216
Only TIME
05:39:38
General datetime
2025-02-16 05:39:38Z
For Database
2025-02-16 05:39:38
For HTTP1.1
Sun, 16 Feb 2025 05:39:38 GMT