"Sat, 04 Jan 2025 05:40:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250104
Only TIME
05:40:18
General datetime
2025-01-04 05:40:18Z
For Database
2025-01-04 05:40:18
For HTTP1.1
Sat, 04 Jan 2025 05:40:18 GMT