"Sat, 25 Jan 2025 08:21:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250125
Only TIME
08:21:11
General datetime
2025-01-25 08:21:11Z
For Database
2025-01-25 08:21:11
For HTTP1.1
Sat, 25 Jan 2025 08:21:11 GMT