"Sun, 14 Apr 2024 20:20:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240414
Only TIME
20:20:15
General datetime
2024-04-14 20:20:15Z
For Database
2024-04-14 20:20:15
For HTTP1.1
Sun, 14 Apr 2024 20:20:15 GMT