LockDown Browser Timer Behavior on Mac (Time Limits, Pauses, Hidden Clocks)
Where the timer lives
The exam timer is part of your LMS's exam interface, not LDB's UI. LDB renders the LMS exam page in kiosk mode; the timer you see is the LMS's. This means:
- The timer is server-side (LMS-controlled), so it accurately reflects time remaining even if your local Mac's clock is wrong.
- The timer style depends on your LMS - Canvas shows a sidebar countdown; Blackboard shows a top-bar countdown; D2L's style varies.
- The macOS menu-bar clock is intentionally hidden by LDB during the exam - to prevent students from cross-referencing real time.
What you can't see (intentionally)
- The macOS menu-bar clock (hidden).
- The Spotlight clock + calendar (Spotlight blocked).
- Any third-party clock app or widget (kiosk mode blocks them).
- Your iPhone or Apple Watch on the desk (the exam camera should not show them; if it does, instructor flags as suspicious).
The LMS timer is the only authority during the exam.
Timer behavior during network disconnect
Default: timer continues during disconnect. Your LMS knows the elapsed time server-side; whether you're connected or not doesn't pause it.
Some institutions configure "timer pauses on disconnect" - typically when the disconnect is > 30 seconds. Check your specific course.
For verified LMS-side disconnects, your instructor can usually issue extra time after the exam if it materially affected your performance. Email immediately with the disconnect time.
Timer behavior on force-quit
If you force-quit LDB mid-exam:
- The LMS timer continues running until either you re-enter (rare; usually blocked) or it expires.
- If the timer expires while LDB is closed, the exam auto-submits with whatever answers were saved.
Auto-submit at zero
When the LMS timer reaches zero:
- Most LMSes auto-submit the exam with whatever answers you've saved.
- Some LMSes show a 60-second warning before auto-submit; some don't.
- LDB releases kiosk mode after auto-submit; you can exit normally.
- Late submissions (your manual submit a few seconds past zero) are usually accepted gracefully - the LMS rounds.
Time-limit edge cases
Exam allows extra time (accommodations)
If your university's disability office granted you 1.5x or 2x time, the LMS's exam timer reflects that. LDB doesn't override the LMS's time setting; whatever the LMS shows is what you have.
Multiple-choice + essay mix
The timer applies to the entire exam. You can spend it however - 30 minutes on multiple-choice, 60 on essays. LDB doesn't enforce per-question time limits unless your instructor explicitly set them.
Exam re-attempts
If your instructor allows re-attempts, each attempt has its own timer. Closing one and opening another doesn't carry over time.
Strategies for the hidden-clock context
- Glance at the LMS timer regularly. Without the menu-bar clock, you don't have an alternative time reference.
- Plan time per question budget. 30 questions in 60 minutes = 2 minutes per. Every 5 minutes you should have answered ~2-3 questions.
- Save the long-essay questions for last. Multiple-choice answers can be ticked even with 1 minute remaining.
- Don't obsess over the timer. Glances every 5-10 minutes are sufficient; constant checking wastes time.
Frequently asked questions
Can I see how long I've been in the exam?
The LMS timer shows time remaining, not elapsed. Subtract from the original exam length to get elapsed. Some LMSes also show elapsed time alongside.
What if the LMS timer freezes?
If the LMS timer stops updating, your network is likely the issue. Disconnect-induced timer freeze depends on LMS config (some pause, some don't). Email instructor with the timestamp.
Can I bring my own clock to look at?
Anything visible to the camera is recorded. A wall clock in your room is fine; an Apple Watch or iPhone on your desk is flagged as a "second device".