"Sun, 30 Jun 2024 20:21:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240630
Only TIME
20:21:21
General datetime
2024-06-30 20:21:21Z
For Database
2024-06-30 20:21:21
For HTTP1.1
Sun, 30 Jun 2024 20:21:21 GMT