ts_t	time_shield::zone_to_gmt (ts_t local, TimeZone zone)
	Convert supported local civil time to GMT (UTC).
TIME_SHIELD_CONSTEXPR ts_t	time_shield::to_utc (ts_t local, tz_t utc_offset) noexcept
	Convert local timestamp (seconds) to UTC using UTC offset.
TIME_SHIELD_CONSTEXPR ts_t	time_shield::to_local (ts_t utc, tz_t utc_offset) noexcept
	Convert UTC timestamp (seconds) to local time using UTC offset.
TIME_SHIELD_CONSTEXPR ts_ms_t	time_shield::to_utc_ms (ts_ms_t local_ms, tz_t utc_offset) noexcept
	Convert local timestamp (milliseconds) to UTC using UTC offset.
TIME_SHIELD_CONSTEXPR ts_ms_t	time_shield::to_local_ms (ts_ms_t utc_ms, tz_t utc_offset) noexcept
	Convert UTC timestamp (milliseconds) to local time using UTC offset.
TIME_SHIELD_CONSTEXPR tz_t	time_shield::utc_offset_of (const TimeZoneStruct &tz) noexcept
	Extract numeric UTC offset (in seconds) from TimeZoneStruct.

Detailed Description

Function Documentation

◆ to_local()

TIME_SHIELD_CONSTEXPR ts_t time_shield::to_local	(	ts_t	utc,
		tz_t	utc_offset )

inlinenoexcept

Convert UTC timestamp (seconds) to local time using UTC offset.

Parameters

utc	UTC timestamp in seconds.
utc_offset	UTC offset in seconds (e.g. CET=+3600, MSK=+10800, EST=-18000).

Returns: Local timestamp in seconds. If utc equals ERROR_TIMESTAMP, returns ERROR_TIMESTAMP.

Definition at line 43 of file time_zone_offset.hpp.

◆ to_local_ms()

TIME_SHIELD_CONSTEXPR ts_ms_t time_shield::to_local_ms	(	ts_ms_t	utc_ms,
		tz_t	utc_offset )

inlinenoexcept

Convert UTC timestamp (milliseconds) to local time using UTC offset.

Parameters

utc_ms	UTC timestamp in milliseconds.
utc_offset	UTC offset in seconds (will be converted to milliseconds).

Returns: Local timestamp in milliseconds. If utc_ms equals ERROR_TIMESTAMP, returns ERROR_TIMESTAMP.

Definition at line 61 of file time_zone_offset.hpp.

◆ to_utc()

TIME_SHIELD_CONSTEXPR ts_t time_shield::to_utc	(	ts_t	local,
		tz_t	utc_offset )

inlinenoexcept

Convert local timestamp (seconds) to UTC using UTC offset.

Parameters

local	Local timestamp in seconds.
utc_offset	UTC offset in seconds (e.g. CET=+3600, MSK=+10800, EST=-18000).

Returns: UTC timestamp in seconds. If local equals ERROR_TIMESTAMP, returns ERROR_TIMESTAMP.

Definition at line 34 of file time_zone_offset.hpp.

◆ to_utc_ms()

TIME_SHIELD_CONSTEXPR ts_ms_t time_shield::to_utc_ms	(	ts_ms_t	local_ms,
		tz_t	utc_offset )

inlinenoexcept

Convert local timestamp (milliseconds) to UTC using UTC offset.

Parameters

local_ms	Local timestamp in milliseconds.
utc_offset	UTC offset in seconds (will be converted to milliseconds).

Returns: UTC timestamp in milliseconds. If local_ms equals ERROR_TIMESTAMP, returns ERROR_TIMESTAMP.

Definition at line 52 of file time_zone_offset.hpp.

◆ utc_offset_of()

TIME_SHIELD_CONSTEXPR tz_t time_shield::utc_offset_of ( const TimeZoneStruct & tz )

inlinenoexcept

Extract numeric UTC offset (in seconds) from TimeZoneStruct.

Parameters

tz	Time zone descriptor.

Returns: UTC offset in seconds (local = utc + offset).

Definition at line 69 of file time_zone_offset.hpp.

◆ zone_to_gmt()

ts_t time_shield::zone_to_gmt	(	ts_t	local,
		TimeZone	zone )

inline

Convert supported local civil time to GMT (UTC).

Parameters

local	Timestamp in seconds in the source time zone.
zone	Source time zone.

Returns: Timestamp in seconds in GMT, or ERROR_TIMESTAMP for unsupported zones.

Definition at line 394 of file time_zone_conversions.hpp.