"Sun, 14 Apr 2024 18:06:05"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240414
Only TIME
18:06:05
General datetime
2024-04-14 18:06:05Z
For Database
2024-04-14 18:06:05
For HTTP1.1
Sun, 14 Apr 2024 18:06:05 GMT