Board Thread:Game Discussion/@comment-29799506-20170914114707/@comment-2001:E68:4430:5F83:8DE8:6477:87BE:84C-20170915132141

Timer continue to count down, when offline, only if you have an ongoing special event. After your current SE is completed and before starting another SE/LTS/flashback, you'll get the old offline behavior - service / upgrade timer stopped while offline.