"Sat, 13 Jul 2024 16:16:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240713
Only TIME
16:16:21
General datetime
2024-07-13 16:16:21Z
For Database
2024-07-13 16:16:21
For HTTP1.1
Sat, 13 Jul 2024 16:16:21 GMT