"Sun, 19 May 2024 06:37:08"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240519
Only TIME
06:37:08
General datetime
2024-05-19 06:37:08Z
For Database
2024-05-19 06:37:08
For HTTP1.1
Sun, 19 May 2024 06:37:08 GMT