"Sun, 23 Jun 2024 09:20:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240623
Only TIME
09:20:20
General datetime
2024-06-23 09:20:20Z
For Database
2024-06-23 09:20:20
For HTTP1.1
Sun, 23 Jun 2024 09:20:20 GMT