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Classroom & Lecture Timer Toolkit for Educators

High-visibility presentation clocks, silent test proctors, and 1-click Canvas and Moodle embed widgets engineered for teachers, professors, and university lecture halls.

15m Quiz & Reading Sprint
15:00
Space Start / PauseR ResetF FullscreenP Picture-in-PictureM Mute Audio

1-Click LMS Embed Codes

Seamlessly integrate responsive countdown clocks directly into your university or K-12 course modules without installing third-party plugins.

How to embed in Canvas: Open any Canvas Page, Assignment, or Quiz. Switch to the Rich Content Editor, select Insert > Embed (or click the HTML code icon </>), and paste the snippet below:

<iframe src="https://raylabs.app/timer/embed/?m=15&theme=dark" width="100%" height="220" style="border:0; border-radius:12px; overflow:hidden;" title="RayLabs Stage Timer" allow="autoplay"></iframe> <div style="font-size:12px; margin-top:4px; text-align:center;"><a href="https://raylabs.app/timer/" target="_blank" rel="noopener" style="color:#94a3b8; text-decoration:none;">Stage Timer by RayLabs</a></div>

Four Tailored Institutional Clock Engines

Engineered specifically to solve real challenges in lecture halls, active learning classrooms, and proctored test centers.

Silent Exam Proctor

Acoustically silent by default to preserve absolute quiet in test halls. Features discreet 50% halfway and 5-minute visual wrap-up alert banners.

Open Exam Proctor Clock

Visual Classroom Timer

High-visibility horizontal depletion bar for smartboards and projectors. Built-in clean-up presets and celebratory confetti upon completion.

Open Visual Classroom Timer

Lecture Confidence Monitor

Tailored for keynote speakers and guest lecturers. Countdown smoothly transitions into a crimson overtime counter (+MM:SS) when time runs out.

Open Confidence Monitor

Student Study Sprints

Classic 25/5 Pomodoro rhythm for university study halls, writing centers, and thesis work. Harmonic 528Hz Solfeggio chimes signal breaks gently.

Open Pomodoro Clock

Institutional Safety & Student Privacy Guarantee

RayLabs Stage Timer is engineered to meet strict institutional policies for university campuses and K-12 school districts.

100% FERPA & COPPA Safe

Zero Student Tracking

All timing loops run entirely in client-side memory. We collect zero personally identifiable information (PII), require no student accounts, and deploy zero persistent tracking cookies.

WCAG 2.1 AA / AAA

Accessibility Certified

High-contrast typography exceeds 7:1 contrast ratios. Includes ARIA live regions for screen readers, full keyboard shortcuts, and zero flashing elements that could trigger photosensitive seizures.

Offline Resilience

Campus Wi-Fi Immunity

Cached locally via browser Service Workers. If campus Wi-Fi drops out during an exam or lecture, the timer continues counting down with microsecond precision.

Ad-Free Presentation

Distraction-Free Screens

Never worry about inappropriate or distracting commercial popups appearing on smartboards in front of classrooms or auditorium attendees.

Frequently Asked Questions

How do I embed RayLabs Timer into Canvas LMS, Moodle, or Blackboard?

In Canvas LMS, open any Page or Assignment in the Rich Content Editor, select Insert > Embed (or click the HTML code icon), and paste our responsive iframe code. In Moodle, add a Label or Page resource, toggle the HTML source view, and paste the code. The timer operates with zero external script dependencies.

Is RayLabs Timer compliant with student data privacy laws (FERPA, COPPA)?

Yes. RayLabs Timer runs 100% client-side in the web browser. It does not require student accounts or logins, sets zero tracking cookies, stores no personal student data, and transmits zero telemetry to external servers. It fully complies with FERPA and COPPA guidelines.

Does the timer trigger loud alarms that disturb exam halls?

No. When using the Exam Proctor Mode (/timer/exam/), audio alarms are completely suppressed by default. The clock relies exclusively on gentle visual progress cues, including a subtle 50% halfway banner and a 5-minute remaining alert.

Can the timer run offline if campus Wi-Fi drops out?

Yes. RayLabs Timer is an offline-first Progressive Web Application (PWA). Once loaded in a browser, all timing loops and audio synthesizers operate locally via client-side Service Workers and Web Audio API, ensuring uninterrupted timekeeping even during campus network outages.

How is the timer optimized for interactive classroom smartboards?

The interface features massive high-contrast typography legible from the back of lecture halls, touch targets exceeding 48px for Promethean boards and SMART Boards, and full keyboard ergonomics (Space to toggle, R to reset, F for fullscreen presentation).

Explore Stage Timer Capabilities
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