Cronometro Gratis com Tempos Parciais
Cronometro preciso com registro de voltas. Inicie, pare, reinicie e registre cada volta com precisao de milissegundos.
00:00.00
How to Use the Online Stopwatch
Click Start to begin timing with millisecond precision. Use Lap to record split times while running. Stop pauses the timer, Reset clears everything. All laps show individual and cumulative times. Copy all laps to your clipboard for records.
When to Use an Online Stopwatch
- Timing workout intervals, running laps, or fitness circuit training sessions
- Measuring task completion times for productivity analysis and time management
- Conducting timed presentations, debates, or classroom activities
Perguntas Frequentes
How accurate is this stopwatch?
It uses requestAnimationFrame and Date.now() for accuracy within a few milliseconds, sufficient for sports, cooking, and productivity tracking.
Will it keep running if I switch tabs?
Yes. The timer uses absolute timestamps so switching tabs does not affect accuracy. The elapsed time is correct when you return.
Can I export my lap times?
Yes. Click Copy All Laps to copy recorded times in text format to your clipboard for pasting into spreadsheets or documents.
Todos os calculos ocorrem no seu navegador. Nenhum dado e enviado a servidores.
Estas ferramentas são grátis para sempre. A SARA vai além.
A SARA é a sua agente AI no WhatsApp: responde a clientes, faz reservas e follow-up — 24/7, automaticamente. Experimente grátis por 14 dias.
Comece o teste grátis de 14 dias →