"Sat, 07 Dec 2024 21:21:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241207
Only TIME
21:21:21
General datetime
2024-12-07 21:21:21Z
For Database
2024-12-07 21:21:21
For HTTP1.1
Sat, 07 Dec 2024 21:21:21 GMT