"Sat, 25 Jan 2025 09:35:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250125
Only TIME
09:35:18
General datetime
2025-01-25 09:35:18Z
For Database
2025-01-25 09:35:18
For HTTP1.1
Sat, 25 Jan 2025 09:35:18 GMT