⏱️ 土卫三自转日 ↔ 格里高利年Tethys day to Gregorian year
土卫三自转日与格里高利年互算（1 d Tet = 0.00515000308 yr Greg）。本地换算，附常用相关单位。Convert Tethys day and Gregorian year (1 d Tet = 0.00515000308 yr Greg). Runs locally with related units.
点击任意一行可复制该结果；小于 0.0001 或不小于 10¹⁵ 的数值用 × 10ⁿ 科学计数法显示Click any row to copy that result. Values below 0.0001 or at least 10¹⁵ are shown in × 10ⁿ notation
使用说明与常见问题How-to & FAQ
「土卫三自转日 ↔ 格里高利年」是什么？What is the Tethys day to Gregorian year tool?
土卫三自转日与格里高利年互算（1 d Tet = 0.00515000308 yr Greg）。本地换算，附常用相关单位。Convert Tethys day and Gregorian year (1 d Tet = 0.00515000308 yr Greg). Runs locally with related units.
如何使用「土卫三自转日 ↔ 格里高利年」？How do I use the Tethys day to Gregorian year tool?
在「土卫三自转日 ↔ 格里高利年」中输入数值并选择原单位，表格会同时列出换算到所有其他单位的结果，可一键复制。Enter a value in the Tethys day to Gregorian year and choose the source unit; the table shows the value in every other unit at once, ready to copy.
1 土卫三自转日等于多少格里高利年？How many Gregorian year in 1 Tethys day?
1 d Tet = 0.00515000308 yr Greg（按国际定义系数）。1 d Tet = 0.00515000308 yr Greg (international definition).
如何把土卫三自转日换算成格里高利年？How do I convert Tethys day to Gregorian year?
结果 = 数值 × 0.00515000308。例如 1 d Tet = 0.00515000308 yr Greg。result = value × 0.00515000308. Example: 1 d Tet = 0.00515000308 yr Greg.
土卫三自转日/格里高利年属于哪类单位？What kind of units are Tethys day/Gregorian year?
二者同属「时间」量纲，可安全互算；也可打开「time-converter」做多单位对照。Both are time units; see also the time converter hub.
换算系数准确吗？Are the conversion factors exact?
「土卫三自转日 ↔ 格里高利年」采用国际单位制（SI）或公认标准中的定义值作为换算系数，结果保留约 10 位有效数字。The Tethys day to Gregorian year uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「土卫三自转日 ↔ 格里高利年」免费吗？需要注册吗？Is the Tethys day to Gregorian year free? Do I need an account?
「土卫三自转日 ↔ 格里高利年」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 Tethys day to Gregorian year is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.