时间戳转换Unix Timestamp Converter
Unix 时间戳与日期时间互转，支持秒和毫秒。Convert Unix timestamps to dates and back, in seconds or milliseconds.
可用Available计算与换算Calculators
日期计算器Date Calculator
计算两个日期之间的天数，或对日期加减天数。Count the days between two dates, or add and subtract days from a date.
理念：Idea: 重要的日子，提前算清楚。Count the days that matter, ahead of time.
解决：Solves: 两日期相隔多少天、加减天数Days between dates, or add/subtract days
适合：For: 算工期、倒计时、纪念日的人Anyone counting days
可用Available在浏览器中运行Runs in your browser
Loading tool…
在你的设备上本地处理。这里输入的内容不会上传。Processed locally on your device. Nothing you enter here is uploaded.
使用方法How to use
- 1选开始日期和结束日期，查看相差多久。Pick a start date and an end date to see the difference.
- 2如果两天都要算进去，打开「Include end date」。Turn on “Include end date” if both days should be counted.
- 3下面一块用来加或减若干天。Use the second panel to add or subtract a number of days.
说明Good to know
- 默认不把结束日算进去（1 月 1 日到 1 月 2 日是 1 天）。By default the difference does not include the end date (Jan 1 → Jan 2 is 1 day).
- 按日历日期计算，闰年、月份长短和夏令时都会算对。Calculations use calendar dates, so leap years, month lengths and daylight-saving changes are handled correctly.
相关工具Related tools
存储单位换算Data Size Converter
字节、KB/MB/GB/TB（十进制）与 KiB/MiB/GiB/TiB（二进制）并排换算。Convert bytes, KB, MB, GB, TB (decimal) and KiB, MiB, GiB, TiB (binary) side by side.
可用Available计算与换算Calculators折扣计算器Discount Calculator
算折后价、节省金额和实际折扣，也能从现价反推折扣。Find the final price, savings and effective discount, or work backwards from a sale price.
可用Available计算与换算Calculators百分比计算器Percentage Calculator
三个常见百分比问题：A% 是多少、A 占 B 多少、从 A 到 B 增减多少。Three common percentage questions: A% of B, A as a share of B, and change from A to B.
可用Available计算与换算Calculators