"Sat, 04 Jan 2025 12:54:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250104
Only TIME
12:54:15
General datetime
2025-01-04 12:54:15Z
For Database
2025-01-04 12:54:15
For HTTP1.1
Sat, 04 Jan 2025 12:54:15 GMT