LIST: Opportunities to serve the Houston area on MLK Day Updated: Tags: HOUSTON – In honor of Martin Luther King Jr. Day, organizations across Houston are using the holiday to further his legacy through acts of service throughout the community. Martin Luther King Jr. Day -- observed each year on the third Monday in January -- is recognized as a day of service, according to the AmeriCorps. This year, MLK Day falls on Monday, January 18. Here are opportunities to get involved in the Houston area: MLK Day of Service at Houston Food Bank When: 8 a.m. to 4 p.m. on Monday, January 18