"Sat, 04 Jan 2025 18:44:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250104
Only TIME
18:44:21
General datetime
2025-01-04 18:44:21Z
For Database
2025-01-04 18:44:21
For HTTP1.1
Sat, 04 Jan 2025 18:44:21 GMT