Kalkulator Waktu

Calculate time difference, duration between two times, add or subtract hours and minutes, and convert between time units — all with step-by-step solutions.

Menghitung

Format: HH:MM or HH:MM:SS (24h)

Select a calculation type, enter your values, and click Calculate to see results with step-by-step solution.

Panduan Pengguna Lengkap

About This Calculator

This time calculator handles four common time operations: finding the difference between two clock times, adding or subtracting a duration from a time, converting between time units (seconds, minutes, hours, days, weeks), and calculating the duration between a start and end time — with automatic midnight-crossing support.

4 Calculation Types

Perbedaan Waktu

Find the exact difference between two clock times in hours, minutes, and seconds.

Add / Subtract

Add or subtract hours, minutes, seconds, or days from any clock time.

Konversi Satuan

Convert between seconds, minutes, hours, days, and weeks.

Lamanya

Hitung berapa lama dari awal sampai akhir. Menangani penyeberangan semalam/tengah malam.

Key Formulas

Difference: |Time₂ − Time₁| (in seconds)

Menambahkan: Time + Amount → mod 86400

Convert: Value × FromFactor ÷ ToFactor

Lamanya: End − Start (atau 86400 − Start + End)

Catatan Penting

  • Gunakan format 24 jam: 0:00 hingga 23:59. Misalnya, 14.30 = 14.30.
  • Duration handles midnight crossing: Start 22:00, End 06:00 = 8 hours.
  • Tambahkan/kurangi bungkus sekitar 24 jam. Mengurangi lewat tengah malam akan menambah 24 jam.
  • 1 hari = 86.400 detik, 1 minggu = 604.800 detik.

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