🦃 查找感恩节Find Thanksgiving Day
感恩节日期：美国为 11 月第四个星期四，加拿大为 10 月第二个星期一。本地处理。可设置「国家」。Thanksgiving: the 4th Thursday of November in the US or the 2nd Monday of October in Canada. Processed locally. Settings: Country.
使用说明与常见问题How-to & FAQ
「查找感恩节」是什么？What is the Find Thanksgiving Day tool?
感恩节日期：美国为 11 月第四个星期四，加拿大为 10 月第二个星期一。本地处理。可设置「国家」。Thanksgiving: the 4th Thursday of November in the US or the 2nd Monday of October in Canada. Processed locally. Settings: Country.
如何使用「查找感恩节」？How do I use the Find Thanksgiving Day tool?
输入年份并在“国家”里选择美国或加拿大，下方即显示当年感恩节的日期和星期。Enter a year and choose the United States or Canada under Country to see that year's Thanksgiving date and weekday.
美国和加拿大的感恩节有什么不同？How do US and Canadian Thanksgiving differ?
美国是 11 月第四个星期四，加拿大是 10 月第二个星期一，可以在“国家”里切换。The US holds it on the 4th Thursday of November and Canada on the 2nd Monday of October; switch between them under Country.
早年的日期可信吗？Are dates for early years meaningful?
工具把现行规则套用到任意年份（美国现行规则自 1942 年起，加拿大自 1957 年起），更早的年份只是按规则推算。The tool applies today's rule to any year (the US rule dates from 1942 and Canada's from 1957), so earlier years are only what the rule would give.
用的是哪种历法、支持哪些年份？Which calendar and years are supported?
按外推格里高利历（现行公历规则向前沿用）计算，年份为 0001–9999 的整数，输出年份一律 4 位补零（如 0005-12-25）。1e3、0x10 这类写法和多余的内容会报错。The proleptic Gregorian calendar (today's rules applied backwards) for whole-number years 0001 to 9999, always shown with 4 digits such as 0005-12-25. Forms like 1e3 or 0x10 and extra text give an error.
这个工具和时区有关吗？Do time zones affect this tool?
无关。结果只由输入的年份或日期按历法规则算出，不读取设备时钟，也不使用任何时区。No. The result is worked out from the year or date you enter with calendar rules alone; it never reads your device clock or uses a time zone.
有哪些选项可以调整？What options can I adjust?
「查找感恩节」的设置：「国家」可选 美国、加拿大（默认 美国）。每次生成结果都按当前设置处理。Settings in the Find Thanksgiving Day tool — "Country": United States, Canada (default United States). The result always uses the current settings.
「查找感恩节」免费吗？需要注册吗？Is the Find Thanksgiving Day tool free? Do I need an account?
「查找感恩节」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 Thanksgiving Day 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.