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DateBounds[{date1,date2,…}]

给出了 datei 中最早和最迟的日期.

DateBounds[obj]

给出与指定数据对象 obj 关联的开始日期和结束日期.

DateBounds[obj,gran]

按指定粒度 gran 给出 interval 的结束日期.

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Details and Options Details and Options
范例  
基本范例  
范围  
属性和关系  
巧妙范例  
参见
相关指南
历史
按以下格式引用：

DateBounds

DateBounds[{date1,date2,…}]

给出了 datei 中最早和最迟的日期.

DateBounds[obj]

给出与指定数据对象 obj 关联的开始日期和结束日期.

DateBounds[obj,gran]

按指定粒度 gran 给出 interval 的结束日期.

更多信息

范例

打开所有单元 关闭所有单元

基本范例  (3)

找出日期对象列表中最先和最后的日期：

Wolfram Language code: DateBounds[{DateObject[{2022, 4, 8}, "Day"], DateObject[{2022, 4, 9}, "Day"], DateObject[{2022, 4, 7}, "Day"]}]

求与 DateInterval 关联的最早和最迟的日期：

Wolfram Language code: DateBounds[DateInterval[{DateObject[{2025, 8, 24}, "Day"], DateObject[{2025, 8, 25, 13, 47, 31.169890}, "Instant", "Gregorian", -5.]}]]

以 "Day" 粒度对象的形式给出 TimeSeries 的时间范围：

Wolfram Language code: ts = FinancialData["NYSE:GE", DateObject[{2020, 1, 1}, "Day"]]
Wolfram Language code: DateBounds[ts, "Day"]

范围  (4)

找出不同形式的日期列表中最先和最后的日期：

Wolfram Language code: DateBounds[{DateObject[{2022}], "1950 Jan 4th", 3867285330, {2023, 1, 1}}]

找出 EventSeries 中的时间界限：

Wolfram Language code: es = EarthquakeData[All, 8, {{2020, 1, 1}, {2022, 5, 16}}, "Magnitude"]
Wolfram Language code: DateBounds[es]

找出 Databin 中的时间界限：

Wolfram Language code: bin = Databin["1qGFQ8v"]
Wolfram Language code: DateBounds[bin]

如果输入只给出一个日期，则会把它座位最先和最后的日期：

Wolfram Language code: DateBounds[{Today}]

属性和关系  (5)

DateBounds 返回 DateObject 表达式列表中的 Min 和 Max：

Wolfram Language code: dates = {DateObject[{2021, 8, 4}, "Day"], DateObject[{2007, 1, 5}, "Day"], DateObject[{2024, 10, 13}, "Day"], DateObject[{2020, 12, 23}, "Day"]};
Wolfram Language code: DateBounds[dates]
Wolfram Language code: Min[dates]
Wolfram Language code: Max[dates]

MinMax 返回和 DateBounds 同样的结果，如果输入是日期对象列表的化：

Wolfram Language code: dates = {DateObject[{2021, 8, 4}, "Day"], DateObject[{2007, 1, 5}, "Day"], DateObject[{2024, 10, 13}, "Day"], DateObject[{2020, 12, 23}, "Day"]};
Wolfram Language code: MinMax[dates]

DateBounds[ts] 返回对应于 ts["FirstDate"] 和 ts["LastDate"] 的日期：

Wolfram Language code: moon = MoonPosition[DateRange[DateObject[{2022, 1, 1}], DateObject[{2022, 1, 31}], 1]]
Wolfram Language code: DateBounds[moon]
Wolfram Language code: moon["FirstDate"]
Wolfram Language code: moon["LastDate"]

这些也是 ts["DateList"] 的 Min 和 Max 值：

Wolfram Language code: MinMax[moon["DateList"]]

DateBounds[bin] 返回对应于 bin["TimeInterval"] 的日期：

Wolfram Language code: bin = Databin["2akVuNN2"]
Wolfram Language code: DateBounds[bin]
Wolfram Language code: bin["TimeInterval"]

这些也是 bin["Timestamps"] 的 Min 和 Max 值：

Wolfram Language code: MinMax[bin["Timestamps"]]

在决定最先和最后的日期时，DateBounds 会考虑 TimeZone 的不同：

Wolfram Language code: DateBounds[{DateObject[{2022, 5, 10, 15, 52}, "Minute", "Gregorian", -4.], DateObject[{2022, 5, 2, 15, 52}, "Minute", "Gregorian", 0.], DateObject[{2022, 5, 5, 15, 52}, "Minute", "Gregorian", -7.]}]

对于不是 DateObject 的日期，会假设时区为 $TimeZone：

Wolfram Language code: DateBounds[{DateObject[{2022, 5, 10, 15, 52}, "Minute", "Gregorian", -4.], DateObject[{2022, 5, 2, 15, 52}, "Minute", "Gregorian", 0.], DateObject[{2022, 5, 5, 15, 52}, "Minute", "Gregorian", -7.], "May 10th, 2022 16:00"}]
Wolfram Language code: Block[{$TimeZone = 0}, DateBounds[{DateObject[{2022, 5, 10, 15, 52}, "Minute", "Gregorian", -4.], DateObject[{2022, 5, 2, 15, 52}, "Minute", "Gregorian", 0.], DateObject[{2022, 5, 5, 15, 52}, "Minute", "Gregorian", -7.], "May 10th, 2022 16:00"}] ]

巧妙范例  (1)

比较不同数据仓的日期界限：

Wolfram Language code: bins = { Databin["3wq7Nk7W"], Databin["2akVuNN2"], Databin["2anlZF8U"], Databin["2anHvIz1"] };
Wolfram Language code: dates = DateBounds /@ bins

用 TimelinePlot 可视化数据仓之间的日期重合：

Wolfram Language code: TimelinePlot[Interval /@ dates]
Wolfram Research (2016)，DateBounds，Wolfram 语言函数，https://reference.wolfram.com/language/ref/DateBounds.html （更新于 2020 年）.

文本

Wolfram Research (2016)，DateBounds，Wolfram 语言函数，https://reference.wolfram.com/language/ref/DateBounds.html （更新于 2020 年）.

CMS

Wolfram 语言. 2016. "DateBounds." Wolfram 语言与系统参考资料中心. Wolfram Research. 最新版本 2020. https://reference.wolfram.com/language/ref/DateBounds.html.

APA

Wolfram 语言. (2016). DateBounds. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/DateBounds.html 年

BibTeX

@misc{reference.wolfram_2026_datebounds, author="Wolfram Research", title="{DateBounds}", year="2020", howpublished="\url{https://reference.wolfram.com/language/ref/DateBounds.html}", note=[Accessed: 17-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_datebounds, organization={Wolfram Research}, title={DateBounds}, year={2020}, url={https://reference.wolfram.com/language/ref/DateBounds.html}, note=[Accessed: 17-June-2026]}