What day is it today? 9/10

Sewer Day (This day falls on "Nihyaku Niju Nichi," one of the 24 solar terms, approximately 220 days afterrisshun (start of spring). It was established to promote sewers, which play a role in flood prevention, during the typhoon season. Previously, it was called "National Sewer Promotion Day" and aimed to increase its adoption rate.)