"Sun, 16 Jun 2024 20:05:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240616
Only TIME
20:05:03
General datetime
2024-06-16 20:05:03Z
For Database
2024-06-16 20:05:03
For HTTP1.1
Sun, 16 Jun 2024 20:05:03 GMT