"Sun, 23 Jun 2024 15:33:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240623
Only TIME
15:33:45
General datetime
2024-06-23 15:33:45Z
For Database
2024-06-23 15:33:45
For HTTP1.1
Sun, 23 Jun 2024 15:33:45 GMT