"Sat, 04 Jan 2025 12:15:01"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250104
Only TIME
12:15:01
General datetime
2025-01-04 12:15:01Z
For Database
2025-01-04 12:15:01
For HTTP1.1
Sat, 04 Jan 2025 12:15:01 GMT