Use this export tool to generate .ics file from your NTU timetable. ICS files may be imported into most calendars, such as google or apple calendar. This way, you can view your timetable in a sane format and from your phone.
Log into STARS Planner with your NTU account.
Click on the red View in Weekly Calendar format button at the bottom right of the page.
Right click anywhere on the page and select View page source.
Copy all the text shown via Ctrl+A, Ctrl+C.
Paste copied source code of the timetable website here.
The procedure varies per each application, but pretty much everything should support this file format.
For example, here is the procedure for google calendar.
Known bug: collisions don't get added into your calendar at all. For now, remember to add them manually.