"Sun, 09 Feb 2025 21:49:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250209
Only TIME
21:49:15
General datetime
2025-02-09 21:49:15Z
For Database
2025-02-09 21:49:15
For HTTP1.1
Sun, 09 Feb 2025 21:49:15 GMT