FullCalendar date format

Question

Want to find the way to change the default date format in FullCalendar.

Actually, it is:
Tue Aug 13 2013 18:00:00 GMT-0400 (EDT)

I want:
2013-08-13

Thanks.

Answer 1

For information specific to the FullCalendar, you probably need to see this, which gives you some formating rules. There's some more information here that might be useful.

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Yet, you can do so with JavaScript directly if you need this date format in an interface between the FullCalendar and other package or your own code:

If you want "today", you can (be careful since that'll be client-side):

> (new Date()).toISOString().slice(0, 10)
'2013-08-31'

And from the string you said, you can:

> dateStr = "Tue Aug 13 2013 18:00:00 GMT-0400 (EDT)"
> (new Date(dateStr)).toISOString().slice(0, 10)
'2013-08-13'

Both would give you the ISO date in UTC. For locale date, you should "move" your time object to UTC before using .toISOString. Let:

> dateStr = "Mon Aug 12 2013 22:00:00 GMT-0400 (EDT)"
> dateObj = new Date(dateStr) /* Or empty, for today */
> dateIntNTZ = dateObj.getTime() - dateObj.getTimezoneOffset() * 60 * 1000
> dateObjNTZ = new Date(dateIntNTZ)
> dateObjNTZ.toISOString().slice(0, 10)
'2013-08-12'

Locale can still be different from GMT-0400 given in your example (here it's GMT-0300, at the end it gives me 1 hour after the one in this example).

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I'll replicate here the information from the first FullCalendar link I said:

formatDate

Formats a Date object into a string.

$.fullCalendar.formatDate( date, formatString [, options ] ) -> String

Prior to version 1.3, formatDate accepted a very different format. See here.

formatString is a combination of any of the following commands:

• s - seconds
• ss - seconds, 2 digits
• m - minutes
• mm - minutes, 2 digits
• h - hours, 12-hour format
• hh - hours, 12-hour format, 2 digits
• H - hours, 24-hour format
• HH - hours, 24-hour format, 2 digits
• d - date number
• dd - date number, 2 digits
• ddd - date name, short
• dddd - date name, full
• M - month number
• MM - month number, 2 digits
• MMM - month name, short
• MMMM - month name, full
• yy - year, 2 digits
• yyyy - year, 4 digits
• t - 'a' or 'p'
• tt - 'am' or 'pm'
• T - 'A' or 'P'
• TT - 'AM' or 'PM'
• u - ISO8601 format
• S - 'st', 'nd', 'rd', 'th' for the date
• W - the ISO8601 week number

Special Characters:

'...' literal text

'' single quote (represented by two single quotes)

(...) only displays format if one of the enclosed variables is non-zero

The options parameter can be used to override default locale options, such as monthNames, monthNamesShort, dayNames, and dayNamesShort.