日期相加减 / 时间差计算
免费在线日期计算工具，支持两日期之间天数 / 工作日 / 小时差计算，支持日期 + N 天 / 周 / 月 / 年 / 工作日，含中国大陆节假日与调休识别
Diff
Add / subtract
From
To
100
Total days
3months9days
Workdays
68
Total hours
2,400
Total weeks
14
User Guide
✨ Features
• Day / workday / hour / week difference between two dates • Date + N days / weeks / months / years / workdays • Built-in 2024-2026 China holidays and substitution data • Toggle between CN-holidays and Mon-Fri rules
📖 How to Use
Step 1
In Diff tab, pick start and end dates
Step 2
In Add tab, pick base date, delta and unit
Step 3
Toggle workday rule as needed
Step 4
Cards update live
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