cbm64 cbm64 - 1 year ago 137
Javascript Question

Javascript Convert Date Time string to Epoch

so I give up...been trying to do this all day;

I have a string that supplies a date and time in the format

dd/MM/yyyy hh:mm
04/12/2012 07:00

I need to turn that into an Epoch date so I can do some calculations upon it. I cannot modify the format in which the date time is sent to me.

JavaScript or jQuery is fine.

Answer Source

JavaScript dates are internally stored as milliseconds since epoch. You just need to convert it to a number, e.g. with the unary + operator, to get them. Or you can use the .getTime method.

The harder will be parsing your date string. You likely will use a regex to extract the values from your string and pass them into Date.UTC:

var parts = datestring.match(/(\d{2})\/(\d{2})\/(\d{4}) (\d{2}):(\d{2})/);
return Date.UTC(+parts[3], parts[2]-1, +parts[1], +parts[4], +parts[5]);

This will yield 1354604400000 ms for your example date.