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