"Sat, 27 Apr 2024 12:12:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240427
Only TIME
12:12:34
General datetime
2024-04-27 12:12:34Z
For Database
2024-04-27 12:12:34
For HTTP1.1
Sat, 27 Apr 2024 12:12:34 GMT