"Sun, 09 Jun 2024 08:37:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240609
Only TIME
08:37:21
General datetime
2024-06-09 08:37:21Z
For Database
2024-06-09 08:37:21
For HTTP1.1
Sun, 09 Jun 2024 08:37:21 GMT