"Sat, 25 Jan 2025 14:42:25"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250125
Only TIME
14:42:25
General datetime
2025-01-25 14:42:25Z
For Database
2025-01-25 14:42:25
For HTTP1.1
Sat, 25 Jan 2025 14:42:25 GMT