"Sat, 27 Apr 2024 18:35:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240427
Only TIME
18:35:09
General datetime
2024-04-27 18:35:09Z
For Database
2024-04-27 18:35:09
For HTTP1.1
Sat, 27 Apr 2024 18:35:09 GMT