View Photo Gallery: Post readers share their #LongestDay memories.

Ready for summer to start? Wednesday, June 20 is the summer solstice, which marks the longest day of the year.

[More: Everything there is to know about the summer solstice]

The official beginning of summer 2012 is a terrific reminder to take advantage of these seemingly endless days.

Did you ever have a day that you wished would never end? Tell us about it in the comments or on Twitter using the hashtag #LongestDay.

We’ll compile some of our favorites and feature them on the site.

Tweet #LongestDay