What's the difference between timetable and schedule?

[Lotinmaxceau]

Common Errors in English, Advanced Level

ESL/EFL Test #7 "At the Meeting", question 10

We don't have a regular timetable, we simply meet periodic if and when there appear to be enough items to justify drawing up an agenda.

(a) timetable
(b) periodic
(c) there appear
(d) to justify

Common Errors in English, Advanced Level

ESL/EFL Test #7 "At the Meeting", answer 10

We don't have a regular timetable, we simply meet periodically if and when there appear to be enough items to justify drawing up an agenda.

Correct entry: periodically
The error was: (b) periodic
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what's the difference between; timetable and schedule?

[Mister Micawber]

A timetable is a schedule of times.
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Native English teacher at Mister Micawber's

[Hieupt]

I think they are same meaning in which "timetable" is mostly used in UK and "schedule" is American style! Am I correct?

Thanks,
Hieu.
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Thank you very much,
Hieu Phan.

P/s: Please just correct if I'm wrong somewhere!

[Mister Micawber]

Both are common AmE words; see my previous post.
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Native English teacher at Mister Micawber's