weekNumbers *1.6* ================= Determines if week numbers should be displayed on the calendar.
Boolean, *default*: `false`
If set to `true`, week numbers will be displayed in a separate left column in the month/basic views as well as at the top-left corner of the agenda views. See [Available Views](../views/Available_Views). By defaut, FullCalendar will display the [ISO8601 week number](http://en.wikipedia.org/wiki/ISO_8601#Week_dates). To display other types of week numbers, see [weekNumberCalculation](weekNumberCalculation).