"Sat, 04 Jan 2025 13:15:05"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250104
Only TIME
13:15:05
General datetime
2025-01-04 13:15:05Z
For Database
2025-01-04 13:15:05
For HTTP1.1
Sat, 04 Jan 2025 13:15:05 GMT