查找夏令时城市

本文介绍了查找夏令时城市的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我希望搜索那些接受夏令时标准的城市.我正在使用Windows2008-R2平台和MFC语言. 请帮助.但是，请注意，时区(通常)并不适用于城市，而是适用于国家或部分国家/地区. 检索时区信息 商品号:Q115231 本文中的信息适用于: Microsoft Win32应用程序编程接口(API): 在Windows NT及更高版本中，时区字符串位于键中: HKEY_LOCAL_MACHINE \ SOFTWARE \ 微软\ Windows NT \ CurrentVersion \ 时区. 在Windows 95中，时区字符串位于以下项中: HKEY_LOCAL_MACHINE \ SOFTWARE \ 微软\ Windows \ CurrentVersion \ 时区. 对于每个时区，注册表项TZI的格式如下: 长偏差； LONG StandardBias; LONG DaylightBias; SYSTEMTIME StandardDate; SYSTEMTIME DaylightDate; 您可以使用此信息填写TIME_ZONE_INFORMATION 结构，在调用SetTimeZoneInformation()时使用. 0xffffffc4 00000000 0xffffffc4 年月日星期几小时分钟秒毫秒 0000 000A 0000 0005 0003 0000 0000 0000 0000 0003 0000 0005 0002 0000 0000 0000 -------------------------------------------------- ------------------------------ TIME_ZONE_INFORMATION TIME_ZONE_INFORMATION结构指定信息 特定于时区. typedef struct _TIME_ZONE_INFORMATION {//tzi 长偏差； WCHAR StandardName [32]; SYSTEMTIME StandardDate; 长StandardBias; WCHAR DaylightName [32]; SYSTEMTIME DaylightDate; 长日照偏差 } TIME_ZONE_INFORMATION; 成员 偏差 指定本地时间的当前偏差(以分钟为单位) 在这台计算机上翻译.偏见就是区别，在 分钟，介于协调世界时(UTC)和本地时间 时间. UTC与当地时间之间的所有翻译均基于 以下公式: UTC =当地时间+偏差 该成员是必需的. StandardName 指定与标准关联的以空字符结尾的字符串 在此操作系统上的时间.例如，此参数 可以包含"EST"以表示东部标准时间.这个 操作系统不使用字符串，因此存储的所有内容 使用SetTimeZoneInformation函数返回的结果 GetTimeZoneInformation函数保持不变.此字符串 可以为空. StandardDate 指定包含日期和本地的SYSTEMTIME结构 从夏令时转换为标准时间的时间 在此操作系统上发生.如果未指定此日期， SYSTEMTIME结构中的wMonth成员必须为零.如果 指定此日期后，中的DaylightDate值 还必须指定TIME_ZONE_INFORMATION结构. 该成员支持两种日期格式.绝对格式 指定标准时间开始的确切日期和时间.在 这种形式，wYear，wMonth，wDay，wHour，wMinute，wSecond， 和SYSTEMTIME结构的wMilliseconds成员已使用 指定确切的日期. 通过设置wYear成员来指定日格式 为零，将wDayOfWeek成员设置为适当的 工作日，并在1到5到的范围内使用wDay值 选择月份中的正确日期.使用此表示法， 可以指定4月的第一个星期日，也可以指定最后一个 10月的星期四(5等于最后一个"). StandardBias 指定在本地时间使用的偏差值 在标准时间内进行的翻译.该成员是 如果未提供StandardDate成员的值，则忽略. 此值添加到Bias成员的值以形成 标准时间使用的偏差.在大多数时区， 该成员的值为零. DaylightName 指定与日光关联的以空字符结尾的字符串 在此操作系统上的时间.例如，此参数 可以包含"PDT"以指示太平洋夏令时间.这个 操作系统未使用字符串，因此存储的所有内容 使用SetTimeZoneInformation函数返回的结果 GetTimeZoneInformation函数保持不变.此字符串 可以为空. DaylightDate 指定包含日期和的SYSTEMTIME结构 从标准时间转换为日光的当地时间 时间在此操作系统上发生.如果该日期不是 指定，SYSTEMTIME结构中的wMonth成员必须 为零.如果指定了此日期，则中的StandardDate值 还必须指定TIME_ZONE_INFORMATION结构. 该成员支持绝对时间和每月时间格式 针对StandardDate成员进行了说明. DaylightBias 指定在本地时间转换期间使用的偏差值 发生在白天.如果该成员将被忽略 没有提供DaylightDate成员的值. 此值加到Bias成员的值上，以形成 白天使用的偏差.在大多数时区，的值 这个成员是–60. 另请参见 时间概述， 时间结构， GetTimeZoneInformation， SetTimeZoneInformation， SYSTEMTIME

不确定是否有相应的库. 您可能必须编写自己的DLL.

Hi, I wan search the list of those cities which have accepted daylight saving standard. I am working on platform Windows2008-R2 and language MFC. Please Help.

解决方案

The following information seems to have disappeared from MSDN but should give you a head start. However, note that time zones do not (in general) apply to cities, but to countries or parts of countries. Retrieving Time-Zone Information Article ID: Q115231 The information in this article applies to: Microsoft Win32 Application Programming Interface (API): In Windows NT and beyond, the time-zone strings are located in the key: HKEY_LOCAL_MACHINE\SOFTWARE\ Microsoft\ Windows NT\ CurrentVersion\ Time Zones. In Windows 95, the time-zone strings are located in the key: HKEY_LOCAL_MACHINE\SOFTWARE\ Microsoft\ Windows\ CurrentVersion\ Time Zones. For each time zone, the registry key TZI is formatted as follows: LONG Bias; LONG StandardBias; LONG DaylightBias; SYSTEMTIME StandardDate; SYSTEMTIME DaylightDate; You can use this information to fill out a TIME_ZONE_INFORMATION structure, which is used when calling SetTimeZoneInformation(). 0xffffffc4 00000000 0xffffffc4 Year Month dow day hour min sec msec 0000 000A 0000 0005 0003 0000 0000 0000 0000 0003 0000 0005 0002 0000 0000 0000 -------------------------------------------------------------------------------- TIME_ZONE_INFORMATION The TIME_ZONE_INFORMATION structure specifies information specific to the time zone. typedef struct _TIME_ZONE_INFORMATION { // tzi LONG Bias; WCHAR StandardName[ 32 ]; SYSTEMTIME StandardDate; LONG StandardBias; WCHAR DaylightName[ 32 ]; SYSTEMTIME DaylightDate; LONG DaylightBias; } TIME_ZONE_INFORMATION; Members Bias Specifies the current bias, in minutes, for local time translation on this computer. The bias is the difference, in minutes, between Coordinated Universal Time (UTC) and local time. All translations between UTC and local time are based on the following formula: UTC = local time + bias This member is required. StandardName Specifies a null-terminated string associated with standard time on this operating system. For example, this parameter could contain "EST" to indicate Eastern Standard Time. This string is not used by the operating system, so anything stored there by using the SetTimeZoneInformation function is returned unchanged by the GetTimeZoneInformation function. This string can be empty. StandardDate Specifies a SYSTEMTIME structure that contains a date and local time when the transition from daylight time to standard time occurs on this operating system. If this date is not specified, the wMonth member in the SYSTEMTIME structure must be zero. If this date is specified, the DaylightDate value in the TIME_ZONE_INFORMATION structure must also be specified. This member supports two date formats. Absolute format specifies an exact date and time when standard time begins. In this form, the wYear, wMonth, wDay, wHour, wMinute, wSecond, and wMilliseconds members of the SYSTEMTIME structure are used to specify an exact date. Day-in-month format is specified by setting the wYear member to zero, setting the wDayOfWeek member to an appropriate weekday, and using a wDay value in the range 1 through 5 to select the correct day in the month. Using this notation, the first Sunday in April can be specified, as can the last Thursday in October (5 is equal to "the last"). StandardBias Specifies a bias value to be used during local time translations that occur during standard time. This member is ignored if a value for the StandardDate member is not supplied. This value is added to the value of the Bias member to form the bias used during standard time. In most time zones, the value of this member is zero. DaylightName Specifies a null-terminated string associated with daylight time on this operating system. For example, this parameter could contain "PDT" to indicate Pacific Daylight Time. This string is not used by the operating system, so anything stored there by using the SetTimeZoneInformation function is returned unchanged by the GetTimeZoneInformation function. This string can be empty. DaylightDate Specifies a SYSTEMTIME structure that contains a date and local time when the transition from standard time to daylight time occurs on this operating system. If this date is not specified, the wMonth member in the SYSTEMTIME structure must be zero. If this date is specified, the StandardDate value in the TIME_ZONE_INFORMATION structure must also be specified. This member supports the absolute and day-in-month time formats described for the StandardDate member. DaylightBias Specifies a bias value to be used during local time translations that occur during daylight time. This member is ignored if a value for the DaylightDate member is not supplied. This value is added to the value of the Bias member to form the bias used during daylight time. In most time zones, the value of this member is – 60. See Also Time Overview, Time Structures, GetTimeZoneInformation, SetTimeZoneInformation, SYSTEMTIME

Not sure there is a library for that. You may have to write your own DLL.