"Sun, 09 Jun 2024 15:45:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240609
Only TIME
15:45:18
General datetime
2024-06-09 15:45:18Z
For Database
2024-06-09 15:45:18
For HTTP1.1
Sun, 09 Jun 2024 15:45:18 GMT