"Sat, 05 Jul 2025 14:45:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250705
Only TIME
14:45:04
General datetime
2025-07-05 14:45:04Z
For Database
2025-07-05 14:45:04
For HTTP1.1
Sat, 05 Jul 2025 14:45:04 GMT