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Time Calculator

Add or subtract hours, minutes, seconds

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Date & Time Calculators

📅Date Calculator📆Days Between⏱️Time Duration🕐Time Calculator💼Business Days📋Business Date📅Weekday📊Week Number🏛️Roman Numerals🎂Age Calculator✨Date Patterns⏳Countdown🌍Time Zones🤝Meeting Planner🌅Sunrise/Sunset🌙Moon Phase

Tips

  • • Times are calculated in 24-hour format internally
  • • Adding time past midnight shows "next day" indicator
  • • Subtracting time before midnight shows "previous day"
  • • Use quick buttons to add common durations

How to Use This Calculator

Enter your values above to get instant results.

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