"Sat, 18 Jan 2025 14:54:53"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250118
Only TIME
14:54:53
General datetime
2025-01-18 14:54:53Z
For Database
2025-01-18 14:54:53
For HTTP1.1
Sat, 18 Jan 2025 14:54:53 GMT