"Sat, 04 Jan 2025 18:44:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250104
Only TIME
18:44:20
General datetime
2025-01-04 18:44:20Z
For Database
2025-01-04 18:44:20
For HTTP1.1
Sat, 04 Jan 2025 18:44:20 GMT