The JavaScript exception "invalid date" occurs when a string leading to an invalid date has been provided to Date or Date.parse.
Message
RangeError: Invalid time value (V8-based)
RangeError: invalid date (Firefox)
RangeError: Invalid Date (Safari)
Error type
What went wrong?
A string leading to an invalid date has been provided to Date or Date.parse.
Examples
Invalid cases
Unrecognizable strings or dates containing illegal element values in ISO formatted
strings usually return NaN. However, depending on the implementation,
non–conforming ISO format strings, may also throw RangeError: invalid date,
like the following cases in Firefox:
new Date("foo-bar 2014");
new Date("2014-25-23").toISOString();
new Date("foo-bar 2014").toString();
This, however, returns NaN in Firefox:
Date.parse("foo-bar 2014"); // NaN
For more details, see the Date.parse documentation.
Valid cases
new Date("05 October 2011 14:48 UTC");
new Date(1317826080); // Unix Timestamp for 05 October 2011 14:48:00 UTC