30 Minute Timer

Half an hour, precisely timed. Start the countdown and get alerted at zero.

Complete!

Timer finished

Quick Presets

Duration

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Build custom workflows with a visual builder, voice prompts, and 30 templates.

Popular Uses for a 30-Minute Timer

Thirty minutes is one of the most versatile time blocks. It's long enough for a full workout, a study session, or a focused work sprint — but short enough to schedule reliably.

Full Workout Sessions

Thirty minutes covers a complete workout — warm-up, main set, and cool-down. Whether you're running, cycling, lifting, or doing circuit training, a 30-minute timer keeps the session structured and prevents it from either dragging on or cutting short.

Study Blocks with Spaced Repetition

Thirty minutes of focused study followed by a 5-to-10-minute break aligns with research on optimal learning intervals. The timer enforces the boundary — when it rings, take the break even if you feel you can keep going.

Lunch Break Management

A 30-minute timer ensures you take your full break without losing track of time. Eat, rest, or take a walk — the alarm brings you back on schedule. This is especially useful in open-office environments where lunch breaks tend to be either too short or too long.

Cooking and Baking

Many recipes call for 30-minute cook times — roasted vegetables, baked chicken, simmered sauces, and risen dough. A timer with an alarm means you can leave the kitchen without risking overcooking.

Focused Email and Communication

Batch your communication into a single 30-minute block. Process emails, return messages, and schedule meetings — then close your inbox until the next block. The timer prevents email from becoming an all-day distraction.

Web vs App

Comparison of web tool and mobile app features
What You Need Free Web Timer Cronologix App
Quick timer for one task Yes Yes
Voice telling you what's next Basic (browser TTS) Yes — TTS + premium voices
Vibration on each count No Yes — haptic patterns
Chain timers into a full routine No Yes — visual block builder
Timer on your lock screen No Yes — Live Activities (iOS)
Keep timing while you browse No Yes — background execution
30 ready-made routines No Yes — fitness, focus, breathing
Save and reuse your timers No Yes — 2 free, unlimited with Pro
Send routines to friends No Yes — QR code or file
See how each run went No Yes — stats & step breakdown
See your progress over weeks No Yes — run history (Pro)
Keep routines across devices No Yes — Google Drive sync (Pro)

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Frequently Asked Questions

How many seconds are in 30 minutes?
Thirty minutes equals 1,800 seconds. The timer displays 30:00 and counts down to 00:00, sounding an alarm when it reaches zero.
Is 30 minutes enough for an effective workout?
Yes. The American College of Sports Medicine recommends at least 150 minutes of moderate exercise per week — that's five 30-minute sessions. High-intensity workouts can deliver comparable benefits in even shorter windows.
What's the best alarm sound for a 30 minute timer?
It depends on context. Use a gentle Chime or Singing Bowl if you're timing a meditation or study session. Choose Beep or Success for workouts and cooking where you need a more noticeable alert.
Can I run the 30 minute timer on my phone?
Yes. The timer works in any mobile browser. For the most reliable alarm delivery, keep the browser tab active. On some devices, background tabs may delay the alarm until you switch back.

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