📐 计算钟表指针夹角Calculate Clock Hand Angle
计算时针与分针（可选秒针）之间的较小夹角（度）。本地处理。可设置「指针」。Smaller angle in degrees between the hour and minute hands (optional seconds). Processed locally. Settings: Hands.
使用说明与常见问题How-to & FAQ
「计算钟表指针夹角」是什么？What is the Calculate Clock Hand Angle tool?
计算时针与分针（可选秒针）之间的较小夹角（度）。本地处理。可设置「指针」。Smaller angle in degrees between the hour and minute hands (optional seconds). Processed locally. Settings: Hands.
如何使用「计算钟表指针夹角」？How do I use the Calculate Clock Hand Angle tool?
输入 HH:MM 或 HH:MM:SS，在“指针”里选择要比较的两根指针，下方会显示它们之间较小的夹角（度）。Enter a time as HH:MM or HH:MM:SS and choose the two hands under "Hands"; the smaller angle between them, in degrees, appears below.
为什么最大是 180°？Why is the angle never more than 180°?
两根指针之间有两个夹角，加起来是 360°，这里给出较小的那个。Two hands form two angles that add up to 360°; the page reports the smaller one.
指针位置怎么算？How are the hand positions worked out?
时针每小时 30°、每分钟 0.5°、每秒 1/120°；分针每分钟 6°、每秒 0.1°；秒针每秒 6°。结果保留 3 位小数，例如 13:45:30 的时-分夹角是 139.75°，与「分析时钟时间」一致。The hour hand moves 30° per hour, 0.5° per minute and 1/120° per second; the minute hand 6° per minute and 0.1° per second; the second hand 6° per second. Results are rounded to 3 decimals — 13:45:30 gives 139.75° between the hour and minute hands, the same as the Analyze Clock Time tool.
和时区有关吗？Do time zones matter?
无关。时间按你输入的 24 小时制钟面时间计算，页面不读取设备时钟，所以时区和夏令时不影响结果。No. The time is used exactly as typed, as a 24-hour clock reading, and the page never reads your device clock, so time zones and daylight saving time do not affect the result.
输入和输出是什么样的？What does the input and output look like?
例如在「计算钟表指针夹角」中输入 03:00，「指针」设为 时-分，输出为：90 deg。For example, the Calculate Clock Hand Angle tool turns the input 03:00, "Hands" set to Hour-minute into: 90 deg.
有哪些选项可以调整？What options can I adjust?
「计算钟表指针夹角」的设置：「指针」可选 时-分、时-秒、分-秒（默认 时-分）。每次生成结果都按当前设置处理。Settings in the Calculate Clock Hand Angle tool — "Hands": Hour-minute, Hour-second, Minute-second (default Hour-minute). The result always uses the current settings.
「计算钟表指针夹角」免费吗？需要注册吗？Is the Calculate Clock Hand Angle tool free? Do I need an account?
「计算钟表指针夹角」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Calculate Clock Hand Angle tool is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.