Conversor de Decimal para Tempo
Converta horas decimais (como 7,5) em formato horas:minutos:segundos (7:30:00), e vice-versa — útil para transformar horas de folha de ponto (7,5) em valor de tempo (7:30:00) e voltar.
Entrada
Um número de horas, ex. 7,5 para sete horas e meia.
Saída
| Unit | Value |
|---|---|
| No data yet | |
Mais formas de usar esta ferramenta
API REST
curl -X POST https://api.iotools.cloud/v1/tool/decimal-to-time-converter \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"mode": "toTime",
"decimalHours": "7.5"
}'Troque pela sua própria chave, da sua conta. Os campos da ferramenta viram o corpo da requisição — sem envelope.
Peça a um agente de IA
Use the IOTools `decimal-to-time-converter` tool (Decimal to Time Converter) on this input:
YOUR_INPUT_HERECole isto em qualquer agente conectado ao servidor MCP do IOTools e depois adicione sua entrada.
Widget para incorporar
<iframe
src="https://iotools.cloud/embed/decimal-to-time-converter/"
width="100%" height="520" frameborder="0" scrolling="no" loading="lazy"
title="Conversor de Decimal para Tempo — iotools.cloud"
sandbox="allow-scripts allow-forms allow-same-origin allow-downloads allow-popups allow-popups-to-escape-sandbox"
allow="clipboard-write"
style="width:100%;border:1px solid #e5e7eb;border-radius:12px;overflow:hidden"></iframe>
<script src="https://iotools.cloud/embed.js" async></script>Coloque isso na sua própria página — grátis, sem chave, só um link de volta.
| Custo por chamada de API/MCP | A partir de 5 créditos |
|---|---|
| Precisa de mais créditos? | Ver preços |
Também disponível via
Guias
The Decimal to Time Converter turns decimal hours (like 7.5) into a clock value (7:30:00), and — unlike a one-way converter — also works in reverse: give it a clock time and it returns the equivalent decimal hours.
Why decimal hours need converting
Timesheets, payroll systems, and billing software often log time as decimal hours because they're easy to sum and multiply by an hourly rate. People, on the other hand, think and enter time as hours:minutes:seconds. Converting between the two by hand is easy to get wrong — 7.5 hours is 7 hours and 30 minutes, not 7 hours and 50 minutes, because the fractional part is a fraction of an hour (60 minutes), not of 100.
How to use it
- Pick a direction: Decimal hours → time or Time → decimal hours.
- Enter the value — a decimal number of hours (e.g.
7.5), or a clock time asH:MM:SSorH:MM(e.g.7:30:00or7:30). - Read the converted result, plus a full breakdown (hours/minutes/seconds, or decimal hours/minutes and total seconds).
How the conversion works
Decimal hours are multiplied by 3600 and rounded to the nearest whole second before being split into hours, minutes, and seconds — rounding at the second level (rather than rounding hours or minutes independently) avoids off-by-one artifacts like 7.999999 hours showing as 8:00:01. Converting the other way sums the clock value into whole seconds first, then divides by 3600 to get decimal hours, rounded to 6 decimal places.
Frequently asked questions
Why does 7.5 hours become 7:30:00, not 7:50:00? Because 0.5 of an hour is 30 minutes (half of 60), not 50. A quick way to check: multiply the decimal part by 60 — 0.5 × 60 = 30.
Can I convert negative values? No — this tool is built for timesheet and duration use, where hours are always zero or positive. For arithmetic on signed durations, see the Time Duration Formatter.
Is my input sent anywhere? No. The conversion runs entirely in your browser. Nothing you type is uploaded.