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.
可用Available计算与换算Calculators
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.
理念：Idea: 容量算清楚，买得不糊涂。Know the real capacity before you buy.
解决：Solves: 搞清 GB 和 GiB 的区别Clears up GB versus GiB
适合：For: 买硬盘、算流量的人Anyone sizing storage or data
可用Available在浏览器中运行Runs in your browser
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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输入数值并选择单位。Enter a value and choose its unit.
- 2对照十进制和二进制结果。Compare decimal and binary results.
说明Good to know
- 1 KB = 1000 字节（硬盘标称）；1 KiB = 1024 字节（系统常显示）。1 KB = 1000 B (what drives are labelled with); 1 KiB = 1024 B (what many systems show).
- 最大到 PB / PiB。Values go up to PB / PiB.
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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时区转换Time Zone Converter
在 26 个主要时区间换算时间，自动处理夏令时。Convert a date and time between 26 major time zones, with daylight saving applied.
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