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converttolocaltime - script and chart function

Converts a UTC or GMT timestamp to local time as a dual value. The place can be any of a number of cities, places and time zones around the world. 


ConvertToLocalTime(timestamp [, place [, ignore_dst=false]])

Return data type: dual

Argument Description
timestamp The timestamp, or expression resolving to a timestamp, to convert.

A place or timezone from the table of valid places and timezones below. Alternatively, you can use GMT or UTC to define the local time. The following values and time offset ranges are valid:

  • GMT
  • GMT-12:00 - GMT-01:00
  • GMT+01:00 - GMT+14:00
  • UTC
  • UTC-12:00 - UTC-01:00
  • UTC+01:00 - UTC+14:00
Information noteIf you use a DST offset (that is, you specify an ignore_dst argument value evaluating to False), you must specify a place, rather than a GMT offset, in the place argument. This is because adjusting for Daylight Saving Time requires latitudinal information in addition to the longitudinal information provided by a GMT offset. For information, see Using GMT offsets in combination with DST.
Information noteYou can only use standard time offsets. It's not possible to use an arbitrary time offset, for example, GMT-04:27.

If this argument evaluates to True, DST (daylight saving time) is ignored. Valid argument values evaluating to True include -1 and True().

If this argument evaluates to False, the timestamp is adjusted for daylight saving time. Valid argument values evaluating to False include 0 and False().

If the ignore_dst argument value is invalid, the function evaluates the expression as if the ignore_dst value evaluates to True. If the ignore_dst argument value is not specified, the function evaluates the expression as if the ignore_dst value evaluates to False.

Valid places and time zones
Abu Dhabi Darwin La Paz Samoa
Adelaide Dhaka Lima Santiago
Alaska Eastern Time (US & Canada) Lisbon Sapporo
Amsterdam Edinburgh Ljubljana Sarajevo
Arizona Ekaterinburg London Saskatchewan
Astana Fiji Madrid Seoul
Athens Georgetown Magadan Singapore
Atlantic Time (Canada) Greenland Mazatlan Skopje
Auckland Greenwich Mean Time : Dublin Melbourne Sofia
Azores Guadalajara Mexico City Solomon Is.
Baghdad Guam Mid-Atlantic Sri Jayawardenepura
Baku Hanoi Minsk St. Petersburg
Bangkok Harare Monrovia Stockholm
Beijing Hawaii Monterrey Sydney
Belgrade Helsinki Moscow Taipei
Berlin Hobart Mountain Time (US & Canada) Tallinn
Bern Hong Kong Mumbai Tashkent
Bogota Indiana (East) Muscat Tbilisi
Brasilia International Date Line West Nairobi Tehran
Bratislava Irkutsk New Caledonia Tokyo
Brisbane Islamabad New Delhi Urumqi
Brussels Istanbul Newfoundland Warsaw
Bucharest Jakarta Novosibirsk Wellington
Budapest Jerusalem Nuku'alofa West Central Africa
Buenos Aires Kabul Osaka Vienna
Cairo Kamchatka Pacific Time (US & Canada) Vilnius
Canberra Karachi Paris Vladivostok
Cape Verde Is. Kathmandu Perth Volgograd
Caracas Kolkata Port Moresby Yakutsk
Casablanca Krasnoyarsk Prague Yerevan
Central America Kuala Lumpur Pretoria Zagreb
Central Time (US & Canada) Kuwait Quito -
Chennai Kyiv Riga -
Chihuahua - Riyadh -
Chongqing - Rome -
Copenhagen - - -

Using GMT offsets in combination with DST

Following the implementation of International Components for Unicode (ICU) libraries in Qlik Sense, the use of GMT (Greenwich Mean Time) offsets in combination with DST (Daylight Saving Time) requires additional latitudinal information.

GMT is a longitudinal (east-west) offset, whereas DST is a latitudinal (north-south) offset. For example, Helsinki (Finland) and Johannesburg (South Africa) share the same GMT+02:00 offset, but they do not share the same DST offset. This means that, further to the GMT offset, any DST offset requires information on the latitudinal position of the local time zone (geographical time zone input) in order to have full information about local DST conditions.

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