📏 天 Between Two Dates
计算任意两个日期之间的准确天数、周数、月数和年数。
365
总天数
1月 1, 2026 → 12月 31, 2026
52
周
12
月份
1
年
8760
小时
104
周末
261
工作日
➕ Add or Subtract 天
Find the date that is N 天 before or after a given date. Useful for deadlines, due dates, and scheduling.
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结果日期
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💼 Business 天 Calculator
Count only working 天 (星期一–星期五) between two dates, excluding weekends. Optionally exclude US 个公共假日.
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个工作日
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总天数
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周末
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节假日
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Work 周
📅 Day of the Week Finder
Find out what day of the week any date falls on — past, present, or future. Also shows the week number and day of the year.
星期四
六月 26, 2026
第177天 of 2026 · Week 26
5
Day # in week
177
年中第几天
26
ISO周
188
天 left in year
常见问题
How do I count 个工作日 between two dates?
Business 天 are week天 (星期一 through 星期五), excluding weekends and public holi天. Use the Business 天 Calculator tab above — it automatically excludes Satur天, Sun天, and optionally 美国联邦假日 2026年.
What is the difference between calendar 天 and 个工作日?
Calendar 天 count every day including weekends and holi天 (e.g. 30 天 = exactly 30 天). Business 天 only count 星期一–星期五, excluding weekends and public holi天. A 30-calendar-day period typically contains about 21–22 business 天.
如何给日期加上30天？
Use the "Add / Subtract 天" tab. Enter your start date, type 30 in the "Number of 天" field, select "Add 天", and click Calculate. The result shows you the exact date 30 天 later, along with the day of the week.
距离2026年结束还有多少天？
Use the 天 Between calculator with today as the start date and 十二月 31, 2026 as the end date. As of today, there are — 天剩余于2026年。