180 day window help

[TinkGirl]

Our vacation starts June 19. I thought I would be able to make my ADR's tomorrow morning--6 months ahead. When I played around with it, the furthest date it would go is June 16 even though today is the 18th. I'm thinking June 19 must not be exactly 180 days out. Is there a calculator somewhere online to help me figure out the day. I don't want to get up at 5:00 a.m. if I don't have to!

 

[vicki_c]

http://pscalculator.net/pscalc.php

Your window starts 12/21.

 

[TinkGirl]

Thank you!!!!!!!!!!!!!!!