cohtml::ITimeZoneProvider

#include <ITimeZoneProvider.h>

Public Functions

	Name
	ITimeZoneProvider()
virtual	~ITimeZoneProvider()
virtual void	GetLocalTimezoneName(double timeMsUtc, char * buffer, size_t maxBufferSize) =0 Returns the short name of the local timezone for a specific point in time. (e.g. EST, PDT)
virtual double	GetDaylightSavingsOffset(double timeMsUtc) =0 Returns the daylight savings time offset (in milliseconds) for a specific point in time.
virtual double	GetLocalTimeOffset(double timeMs, bool isTimeUtc) =0 Returns the local time offset (without DST) from UTC (in milliseconds) for a specific point in time. Must comply to the following spec https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-local-time-zone-adjustment.

Public Functions Documentation

function ITimeZoneProvider

ITimeZoneProvider()

function ~ITimeZoneProvider

virtual ~ITimeZoneProvider()

function GetLocalTimezoneName

virtual void GetLocalTimezoneName(
    double timeMsUtc,
    char * buffer,
    size_t maxBufferSize
) =0

Returns the short name of the local timezone for a specific point in time. (e.g. EST, PDT)

Parameters:

• timeMsUtc UTC time point in milliseconds
• buffer a zero terminated buffer to fill the result
• maxBufferSize the max size of the buffer

function GetDaylightSavingsOffset

virtual double GetDaylightSavingsOffset(
    double timeMsUtc
) =0

Returns the daylight savings time offset (in milliseconds) for a specific point in time.

Parameters:

• timeMsUtc UTC time point in milliseconds

Return: the daylight savings time offset

function GetLocalTimeOffset

virtual double GetLocalTimeOffset(
    double timeMs,
    bool isTimeUtc
) =0

Returns the local time offset (without DST) from UTC (in milliseconds) for a specific point in time. Must comply to the following spec https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-local-time-zone-adjustment.

Parameters:

• timeMs a time point in milliseconds when isTimeUtc is true the time point is in the UTC time zone when isTimeUtc is false the time point is in the local time zone
• isTimeUtc whether timeMs is in the UTC or local time zone

Return: the offset of the local time zone from UTC at timeMs

---