"Fri, 21 Jun 2024 04:45:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
04:45:21
General datetime
2024-06-21 04:45:21Z
For Database
2024-06-21 04:45:21
For HTTP1.1
Fri, 21 Jun 2024 04:45:21 GMT