"Sat, 04 Jan 2025 09:15:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250104
Only TIME
09:15:45
General datetime
2025-01-04 09:15:45Z
For Database
2025-01-04 09:15:45
For HTTP1.1
Sat, 04 Jan 2025 09:15:45 GMT