[{"data":1,"prerenderedAt":189},["ShallowReactive",2],{"page:\u002Fzh\u002Fguides\u002Ftime-zone-conversion-checklist":3},{"id":4,"title":5,"body":6,"description":170,"extension":171,"faq":172,"intro":179,"kind":180,"locale":181,"meta":182,"navigation":183,"path":184,"seo":185,"seoTitle":186,"stem":187,"__hash__":188},"pages\u002Fzh\u002Fguides\u002Ftime-zone-conversion-checklist.md","发送跨时区时间前的核对清单",{"type":7,"value":8,"toc":161},"minimark",[9,13,23,26,29,37,89,96,99,102,113,125,129,132,135,138,151],[10,11,12],"h2",{"id":12},"先确认谁的当地时间是来源",[14,15,16,17,22],"p",{},"“明天上午九点”对跨国协作来说不是完整的预约信息。先问清这是谁所在城市的九点，以及该城市日历上的哪一天，再填入",[18,19,21],"a",{"href":20},"\u002Fzh\u002Ftime-converter\u002F","时间转换器","。来源用于解释输入，目标用于显示同一个时刻；输入日期不一定属于你的设备所在地，也不能自动当成目标城市的日期。",[14,24,25],{},"选择实际城市对应的 IANA 时区，而不是拿今天的时差加减到未来预约上。国家快捷入口只代表名称中说明的地区，多时区国家应选实际城市。附近城市也不一定可互换：国界、夏令时政策和历史规则都可能不同。目录没有匹配项时，不要仅凭距离挑一个看起来相近的城市。",[10,27,28],{"id":28},"用北京与洛杉矶检查跨日",[14,30,31,32,36],{},"来源选择北京，输入 ",[33,34,35],"code",{},"2026-10-13 09:26","，目标选择洛杉矶：",[38,39,40,53],"table",{},[41,42,43],"thead",{},[44,45,46,50],"tr",{},[47,48,49],"th",{},"核对项目",[47,51,52],{},"应显示的结果",[54,55,56,65,73,81],"tbody",{},[44,57,58,62],{},[59,60,61],"td",{},"来源时间",[59,63,64],{},"北京 · 2026-10-13 09:26 · UTC+08:00",[44,66,67,70],{},[59,68,69],{},"同一时刻的 UTC",[59,71,72],{},"2026-10-13 01:26",[44,74,75,78],{},[59,76,77],{},"目标时间",[59,79,80],{},"洛杉矶 · 2026-10-12 18:26 · UTC−07:00",[44,82,83,86],{},[59,84,85],{},"日期关系",[59,87,88],{},"前一天",[14,90,91,92,95],{},"不能只告诉对方“18:26”，因为洛杉矶仍处在 10 月 12 日。若来源改成 ",[33,93,94],{},"2026-01-13 09:26","，结果会是洛杉矶 1 月 12 日 17:26、UTC−08:00。这一小时差别来自所选日期的季节性规则，不是输入格式或界面语言造成的。",[14,97,98],{},"重要约定最好同时写出来源和目标读数，例如“北京时间 10 月 13 日 09:26／洛杉矶时间 10 月 12 日 18:26”。这样双方能发现日期或城市选错，也不用凭记忆推算时差。",[10,100,101],{"id":101},"日期错误与夏令时歧义是两类问题",[14,103,104,105,108,109,112],{},"工具接受 ",[33,106,107],{},"YYYY-MM-DD HH:mm","，可附加秒数，支持 1970–2100 年的输入。不存在的日历日期应当修正，不应悄悄滚动到另一个月份。夏令时造成的缺口则需要回到原预约确认：纽约 ",[33,110,111],{},"2024-03-10 02:30"," 从未出现，不能把它当作有效当地时间继续换算。",[14,114,115,116,119,120,124],{},"纽约 ",[33,117,118],{},"2024-11-03 01:30"," 出现过两次，较早一次为 UTC−04:00，较晚一次为 UTC−05:00，两者相差一个真实小时。应询问组织者要哪一次，再选择对应选项；仅重复写“01:30”不能解决歧义。",[18,121,123],{"href":122},"\u002Fzh\u002Fguides\u002Ftime-zones-and-dst\u002F","时区与夏令时指南","解释了偏移与地区规则的区别。",[10,126,128],{"id":127},"编辑之后重新核对不复制旧结果","编辑之后重新核对，不复制旧结果",[14,130,131],{},"更改来源城市或来源输入后，旧结果会清空。重新点击转换，再检查目标日期与“前一天／同一天／后一天”。添加其他目标城市只是显示已解析的同一个时刻；成功转换后交换城市，也会保留这个时刻，而不是简单交换两段文字。",[14,133,134],{},"12／24 小时制只改变读法。使用 12 小时制时不能漏掉上午／下午：12 AM 是午夜，12 PM 是中午。复制结果包含城市、完整日期、IANA 名称和偏移；自动复制不可靠时，可以使用工具提供的手动文本。",[10,136,137],{"id":137},"多人会议还要检查结束时间",[14,139,140,141,145,146,150],{},"一个城市的换算结果不能说明 90 分钟会议是否落在所有人的工作时段内。使用",[18,142,144],{"href":143},"\u002Fzh\u002Fmeeting-planner\u002F","会议排期","比较完整区间，并参考",[18,147,149],{"href":148},"\u002Fzh\u002Fguides\u002Fplan-international-meetings\u002F","跨时区会议安排指南","。未来政策可能变化，浏览器时区数据也可能滞后；重要活动临近执行时应重新确认。",[14,152,153,154,160],{},"技术参考：",[18,155,159],{"href":156,"rel":157},"https:\u002F\u002Fdeveloper.mozilla.org\u002Fen-US\u002Fdocs\u002FWeb\u002FJavaScript\u002FReference\u002FGlobal_Objects\u002FTemporal\u002FZonedDateTime",[158],"nofollow","MDN 关于当地时间歧义的说明","。",{"title":162,"searchDepth":163,"depth":163,"links":164},"",2,[165,166,167,168,169],{"id":12,"depth":163,"text":12},{"id":28,"depth":163,"text":28},{"id":101,"depth":163,"text":101},{"id":127,"depth":163,"text":128},{"id":137,"depth":163,"text":137},"通过北京与洛杉矶的具体例子，核对来源城市、目标日期、夏令时歧义和复制结果，避免把预约安排到错误的一天。","md",[173,176],{"question":174,"answer":175},"发送换算结果时至少要写哪些信息？","写清当地日期、钟点、目标城市及 IANA 时区。跨日时明确标注目标当地日期，不要只发送几点。",{"question":177,"answer":178},"交换城市会改变预约对应的时刻吗？","成功转换后交换城市会保留同一绝对时刻，只是改用新来源城市的当地钟点表示。",null,"guide","zh",{},true,"\u002Fzh\u002Fguides\u002Ftime-zone-conversion-checklist",{"title":5,"description":170},"时间转换核对清单：城市、日期、跨日与夏令时","zh\u002Fguides\u002Ftime-zone-conversion-checklist","mT-vhodpm8h976ZQrupVv_o44NZN1-dzTeRjQjvTr6A",1792030944500]