"Sun, 09 Jun 2024 15:50:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240609
Only TIME
15:50:15
General datetime
2024-06-09 15:50:15Z
For Database
2024-06-09 15:50:15
For HTTP1.1
Sun, 09 Jun 2024 15:50:15 GMT