"Sat, 13 Jul 2024 13:35:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240713
Only TIME
13:35:21
General datetime
2024-07-13 13:35:21Z
For Database
2024-07-13 13:35:21
For HTTP1.1
Sat, 13 Jul 2024 13:35:21 GMT