"Sun, 05 Jan 2025 13:15:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250105
Only TIME
13:15:18
General datetime
2025-01-05 13:15:18Z
For Database
2025-01-05 13:15:18
For HTTP1.1
Sun, 05 Jan 2025 13:15:18 GMT