🍀 查找黑色星期五Find Friday the 13th
列出指定年份所有星期五且为 13 日的日期。可设置「年份」。List every Friday the 13th in a year. Settings: Year.
使用说明与常见问题How-to & FAQ
「查找黑色星期五」是什么？What is the Find Friday the 13th tool?
列出指定年份所有星期五且为 13 日的日期。可设置「年份」。List every Friday the 13th in a year. Settings: Year.
如何使用「查找黑色星期五」？How do I use the Find Friday the 13th tool?
在「查找黑色星期五」中，按需设置「年份」等选项，然后点击「查找」按钮即可。In the Find Friday the 13th: Set "Year", then click "Find".
受时区影响吗？Does the time zone matter?
不受影响。本页按公历计算某年每个月 13 日是星期几（内部用 UTC 日期，避免本地时区和夏令时造成偏移），一年中 13 号星期五最少 1 次、最多 3 次。No. It works out the weekday of the 13th of each month in the Gregorian calendar (using UTC dates internally so local time zones and daylight saving cannot shift it). Every year has between 1 and 3 Friday the 13ths.
有哪些选项可以调整？What options can I adjust?
「查找黑色星期五」的设置：「年份」默认 2026。每次生成结果都按当前设置处理。Settings in the Find Friday the 13th — "Year" default 2026. The result always uses the current settings.
「查找黑色星期五」免费吗？需要注册吗？Is the Find Friday the 13th free? Do I need an account?
「查找黑色星期五」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 Find Friday the 13th is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.