As you know the format is like:
\"YYYY-MM-DDTHH:NN:SS.ZZZ+XX:XX\" (i.e. \"2009-03-24T16:24:32.057+01:00\")
I have to do it in a ActionScript3
Following Regex is perfect for any UTC date formats
"^(-?(?:[1-9][0-9]*)?[0-9]{4})-(1[0-2]|0[1-9])-(3[01]|0[1-9]|[12][0-9])T(2[0-3]|[01][0-9]):([0-5][0-9]):([0-5][0-9])(\\.[0-9]+)?(Z)?$"
Ref: https://www.regexpal.com/94925