Fact 1:
Integer value representing the month, beginning with 0 for January to 11 for December. For example,
Today is
> var date = new Date(2016, 3, 29, 11, 10, 30)instead of
> var date = new Date(2016, 4, 29, 11, 10, 30)Fact 2:
The JavaScript date is based on a time value that is milliseconds, while UNIX timestamp is in second since 00:00:00 UTC on January 1, 1970.
For example, to convert a unix time:
> var date = new Date(UNIX_Timestamp * 1000);