"Sat, 25 Jan 2025 21:34:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250125
Only TIME
21:34:54
General datetime
2025-01-25 21:34:54Z
For Database
2025-01-25 21:34:54
For HTTP1.1
Sat, 25 Jan 2025 21:34:54 GMT