When Is 2025 Spring. In the northern hemisphere, the astronomical start of spring, also known as the spring equinox, will occur on thursday, march 20, at 5:01 am edt in 2025. On this date, the day is equal.

138 rows united states 2025 holiday calendar with all major holidays and. From powder pink to cerulean, find out which color trends will have the biggest impact on our spring 2025 wardrobes here.