"Sun, 09 Jun 2024 20:00:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240609
Only TIME
20:00:21
General datetime
2024-06-09 20:00:21Z
For Database
2024-06-09 20:00:21
For HTTP1.1
Sun, 09 Jun 2024 20:00:21 GMT