🔭 儒略日转换器Julian Date Converter

使用说明与常见问题How-to & FAQ

「儒略日转换器」是什么？What is the Julian Date Converter?

公历日期时间（UTC）与儒略日（JD）、简化儒略日（MJD）互相转换，天文计算常用。Convert UTC date/time to Julian Date (JD) and Modified Julian Date (MJD), and back.

如何使用「儒略日转换器」？How do I use the Julian Date Converter?

在「儒略日转换器」中，填写「UTC 日期时间」、「或儒略日 JD」等参数，结果会随输入实时计算并显示在下方。In the Julian Date Converter: Fill in "UTC date-time", "or Julian Date"; results are recalculated instantly as you type.

时区如何处理？How are time zones handled?

「儒略日转换器」按 UTC（协调世界时）或纯日期计算，不受你设备时区和夏令时影响。The Julian Date Converter works in UTC (or with plain calendar dates), so your device's time zone and daylight saving time do not affect the result.

「儒略日转换器」免费吗？需要注册吗？Is the Julian Date Converter free? Do I need an account?

「儒略日转换器」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 Julian Date Converter is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.