new Date() is working in Chrome but not Firefox

This is the way of instantiate a date object. Try this code example,

new Date() // current date and time
new Date(milliseconds) //milliseconds since 1970/01/01
new Date(dateString)
new Date(year, month, day, hours, minutes, seconds, milliseconds)

Try this also,

d1 = new Date("October 13, 1975 11:13:00")
d2 = new Date(79,5,24)
d3 = new Date(79,5,24,11,33,0)

The source is here. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date

The EMCAScript specification need the exact one date format.But it custom date formats may be freely supported by an implementation: “In case the String are not confirm to that  format the function may fall back to any implementation-specific heuristics .The implementation-specific date format are different in chrome and FF.

Here is the code,

new Date('2001-01-31 12:00:00')

And here is the format: YYYY-MM-DDTHH:mm:ss.sss.

Anyone can use this code, because it works at all browsers,

new Date('2001/01/31 12:00:00')

This should be the format,

“yyyy/MM/dd HH:mm:ss”.