"Sat, 04 Jan 2025 15:28:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250104
Only TIME
15:28:21
General datetime
2025-01-04 15:28:21Z
For Database
2025-01-04 15:28:21
For HTTP1.1
Sat, 04 Jan 2025 15:28:21 GMT