"Sat, 20 Jul 2024 04:09:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240720
Only TIME
04:09:21
General datetime
2024-07-20 04:09:21Z
For Database
2024-07-20 04:09:21
For HTTP1.1
Sat, 20 Jul 2024 04:09:21 GMT