Google, while generous with its updates, follows a more or less strict timetable for its Nexus devices. (slashgear.com)
Here lies your task on this project: to provide dreams and ideas for all those who spend sleepless nights, or those who have to face monotonous working days with strict timetables and no unexpected events. (artviewer.org)
In the UK, for example, Takeover Panel rules keep things on a fairly strict timetable. (wexboy.wordpress.com)