"Sun, 16 Jun 2024 23:45:44"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240616
Only TIME
23:45:44
General datetime
2024-06-16 23:45:44Z
For Database
2024-06-16 23:45:44
For HTTP1.1
Sun, 16 Jun 2024 23:45:44 GMT