يا ترى الخطا فين:The manager's timetable next week is very busy.

scheduleلانها بمعني خطة زمنية مدرج بها احداث يجب تنفيذها مع وجود قيد زمني معلوم .

اليك منى كل احترام وتقدير
The manager's schedule next week is very busy.
timetable.= a list or plan showing the times when lessons take place or
the times when buses, trains etc arrive and leave: 'According to my
timetable, history is on Mondays and Thursdays.'
schedule = a detailed plan of all the things that have to be done during a
certain period: 'It's important that we all try and keep to the schedule.'
'The project is running 6 months behind schedule.'