D.C. Public Schools students will not have to make up two of this year’s six snow days, officials said Monday.

The last day of school will be Friday, June 20, originally a professional development day for teachers and now a full instructional day.

City schools are required to have class 180 days a year, but the school system was granted a waiver from that requirement because of the unusually large number of school days that were canceled for inclement weather this past winter.

Students made up one snow day when they went to school March 28, which was supposed to be a work day for teachers and a day off for children. Monday, June 2 has been converted from a day for parent-teacher conferences into an instructional day, and Thursday, June 19, has been lengthened from a half-day to a full day.

The waiver means students will not have to make up the class time they missed when school was closed March 3 and March 24.

The District’s schools close less often for weather than most surrounding school systems, all of which have had to reconfigure their schedules to handle the large number of snow days this winter.