Interpreting VDOT Posted Closure Times

VDOT’s websites and emails can be confusing for closure times when the closure starts at midnight. For some reason VDOT considers midnight 00:00:00 to be the day before. Therefore I don’t know how they every celebrate ringing in the New Year with everyone else :o

If VDOT says that a road will be closed on Friday Midnight to 4 am, they really mean the road will be closed from Saturday Midnight to 4 am.

They will often post about evening closures. Thursday is from 10 pm to 4 am. Meaning 22:00:00 on Thursday till 03:59:59 on Friday. Then they post that the work continues on Friday and the closure is from Midnight to 4 am. This is not a duplicate. They really mean 00:00:00 on Saturday till 03:59:59 on Saturday.

Example for the I-395 Express Lane Times that are posted on Mondays they list the following for the two construction sites:

Site 1:
Monday, January 27: 10 p.m. to 4:30 a.m. Waze Closure time 1/27 22:00 to 1/28 04:29
Tuesday, January 28: 10 p.m to 4:30 a.m. Waze Closure time 1/28 22:00 to 1/29 04:29
Wednesday, January 29: 10 p.m to 4:30 a.m. Waze Closure time 1/29 22:00 to 1/30 04:29
Thursday, January 30: 10 p.m to 4:30 a.m. Waze Closure time 1/30 22:00 to 1/31 04:29
Friday, January 31: 10 p.m to 6 a.m. Waze Closure time 1/31 22:00 to 2/1 05:59
Saturday, February 1: 10 p.m to 6 a.m. Waze Closure time 2/1 22:00 to 2/2 05:59

Site 2:
Monday, January 27: 12 a.m to 4:30 a.m. Waze Closure time 1/28 00:00 to 1/28 04:29
Tuesday, January 28: 12 a.m to 4:30 a.m. Waze Closure time 1/29 00:00 to 1/29 04:29
Wednesday, January 29: 12 a.m. to 4:30 a.m. Waze Closure time 1/30 00:00 to 1/30 04:29
Thursday, January 30: 12 a.m. to 4:30 a.m. Waze Closure time 1/31 00:00 to 1/31 04:29
Friday, January 31: 12 a.m. to 6 a.m. Waze Closure time 2/1 00:00 to 2/1 05:59
Saturday, February 1: 12 a.m. to 6 a.m. Waze Closure time 2/2 00:00 to 2/2 05:59

They aren’t posting times for midnight on Monday which is already passed.

I have confirmed this interpretation with VDOT employees so figure I will post here to make sure everyone understands. It is very apparent when they have