"Sat, 04 Jan 2025 19:21:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250104
Only TIME
19:21:09
General datetime
2025-01-04 19:21:09Z
For Database
2025-01-04 19:21:09
For HTTP1.1
Sat, 04 Jan 2025 19:21:09 GMT