The Date helper is used for calculations with dates.

Date::difference($from, $to, $type = null)

$from, $to - from and to date in the format: YYYY-MM-DD HH:MM::SS

$type - default to null will return an array containing:

[y] => 0

[m] => 2

[d] => 26

[h] => 0

[i] => 0

[s] => 0

[weekday] => 0

[weekday_behavior] => 0

[first_last_day_of] => 0

[invert] => 1

[days] => 86

[special_type] => 0

[special_amount] => 0

[have_weekday_relative] => 0

[have_special_relative] => 0

to return a set item like the number of days pass d as the third parameter.

Date::businessDays($startDate, $endDate, $weekendDays = false)

Get the number of days between 2 dates, set $weekendDays to true to get the number of weekends.

Date::businessDates($startDate, $endDate, $nonWork = 6)

Get an array of dates between 2 dates (not including weekends). $nonWork day of week(int) where weekend begins - 5 = fri -> sun, 6 = sat -> sun, 7 = sunday

Date::daysInMonth($month = 0, $year = '')

Takes a month/year as input and returns the number of days for the given month/year. Takes leap years into consideration.