What Day Is The Longest Day Of The Year 2024 Calendar. The solstice is celebrated twice a year for summer and winter or the longest and shortest daylight during the year. The summer solstice is traditionally a festive day associated with the beginning of warmer months, longer days, early dawns, late sunsets and shorter nights in the.
Today (thursday) is the first day of astronomical summer, or the summer solstice. The summer solstice, also known as the june solstice arrives june 20 at 4:51 p.m.