"Sat, 22 Jun 2024 23:45:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240622
Only TIME
23:45:21
General datetime
2024-06-22 23:45:21Z
For Database
2024-06-22 23:45:21
For HTTP1.1
Sat, 22 Jun 2024 23:45:21 GMT