日付・時間
日付、時間、旅行予算、チップ、通貨換算など、日常生活で使える計算ツールです。
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Age Calculator
Calculate your exact age in years, months and days from your date of birth, plus total days, weeks, months lived and days until your next birthday.
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Date Calculator
Calculate the number of days, weeks and business days between two dates, or add and subtract days from a date to find the resulting date and weekday.
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Time Calculator
Add or subtract times and calculate the duration between two clock times in HH:MM format, with results in hours-minutes, total minutes and decimal hours.
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Time Zone Converter
Convert a clock time between 17 major world time zones using IANA time zone data, with daylight saving handled automatically and the offset shown.