COLOMBO (News 1st); Sri Lanka will impose 13-hour power cuts on Thursday (31), announced the Public Utilities Commission of Sri Lanka.Groups ABCDEF: 3 hours from 3 AM to 6 AM 4 hours from 12 PM to 4 PM 6 hours from 6 PM to 12 AMGroups GHIJKL: 3 hours from 12 AM to 3 AM4 hours from 8 AM to 12 PM6 hours from 4 PM to 10 PMGroups PQRS: 3 hours from 3 AM to 6 AM4 hours from 12 PM to 4 PM6 hours from 6 PM to 12 AMGroups TUVW: 3 hours from 12 AM to 3 AM4 hours from 8 AM to 12 PM6 hours from 4 PM to 10 PMGroups MNOXYZ: 3 hours and 30 minutes from 5.30 AM to 9 AM 2 hours from 4 PM to 6 PM .