"Sat, 18 Jan 2025 14:53:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250118
Only TIME
14:53:45
General datetime
2025-01-18 14:53:45Z
For Database
2025-01-18 14:53:45
For HTTP1.1
Sat, 18 Jan 2025 14:53:45 GMT