"Sat, 15 Feb 2025 02:33:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250215
Only TIME
02:33:54
General datetime
2025-02-15 02:33:54Z
For Database
2025-02-15 02:33:54
For HTTP1.1
Sat, 15 Feb 2025 02:33:54 GMT