Time Zone Setting
- General Information
- Custom Time Zones
- Using Different Time Zone in Individual Charts
- Updating Session Times in Chart after Time Zone Changes
- Resolving Differences with the Transition To/From Daylight Savings Time in Different Time Zones
All dates and times are obtained and stored in UTC/GMT time. This also applies to historical data. Within Sierra Chart using the Time Zone settings, you can therefore use any time zone to display the Date-Times in and change this any time you require.
The global Time Zone settings are located in the Time Zone Settingswindow, which can be accessed from the menu by selecting Global Settings >> Time Zone Settings on the main menu.
The Time Zone setting sets the time zone to display times in throughout Sierra Chart. The Time Zone setting offers a list of common time zones around the world. These time zones are listed by one major city that the time zone contains.
From the list of time zones, select the time zone you want to use. If the time zone you want to use is not represented in the list, you can set up a Custom Time Zone.
It is also supported to set a Different Time Zone in Individual Charts.
For troubleshooting information related to the Time Zone setting control, refer to help topic 38.
In the case of Historical Daily data, the time zone for the open to close for the daily bars is according to the time zone of the exchange for the symbol of the Historical Daily chart. In the case of the Sierra Chart Real-time and Historical Forex/CFD Data Service, the time zone for the Daily data is US Eastern. However, you can always use Intraday charts to work around this to use any time zone you require.
Custom Time Zones
To set a time zone that is not represented in the list, select Other/Custom DST... in the list, and press on the Set button that appears next to the list. This will display the Custom Time Zone window.
This is the abbreviated name of the time zone during standard time such as "CET" for Central European Time or "NZST" for New Zealand Standard Time. This does not show up elsewhere in the program and does not affect the time zone calculations at all, but it is necessary to have a name and useful for understanding what the custom time zone is intended to be.
This is the time offset of the time zone's local time from UTC (Coordinated Universal Time). For example, MST (Mountain Standard Time in the United States) has a UTC offset of -7, meaning the local time in MST is 7 hours earlier than UTC. This offset is without consideration to daylight savings time. Most offsets are in even hour increments, however minutes can be included as well. For example, IST (India Standard Time) has a UTC Offset of +5:30, which can be entered in the edit box as "+5:30".
Daylight Savings Time/Summer Time
A time zone may or may not use Daylight Savings Time or Summer time. If it does, additional controls are enabled to control the settings of this additional offset. An offset of +1 hour added to the UTC Offset is always used for daylight savings time.
This is the same as the Name setting above for standard time, except this one is the name of the time zone during daylight savings time, such as "CEST" for Central European Summer Time or "NZDT" for New Zealand Daylight Time.
This specifies when daylight savings time starts. The time setting is the current local time for when the change will take place. So if the time is set to 02:00:00, that means on the date of the change, the local time will go from 01:59:59 to 03:00:00.
This specifies when daylight savings time ends. The time setting is the current local time for when the change will take place. So if the time is set to 02:00:00, that means on the date of the change, the local time will go from 01:59:59 to 01:00:00.
Using Different Time Zone in Individual Charts
It is supported to use a different time zone in a chart compared to the global time zone setting in Global Settings >> Time Zone Settings.
If you set a different time zone in a chart, be aware that you have done this so that you understand the timescale that you are seeing.
To set a separate time zone for a chart, select Chart >> Chart Settings >> Session Times. Set the Time Zone setting to a setting other than Use Global Time Zone.
You also need to be aware that if you use a different time zone in a chart compared to the global time zone, when using the Tools >> Global Cursor On, the exact time that you see highlighted on each of the charts will be different if the time zone is different on those charts. However, the corresponding time highlighted based upon the time zone of each of the charts, will be correct.
In newer versions of Sierra Chart, when changing the Time Zone setting in a chart, the Session Times for Intraday Charts are automatically changed by a time amount equal to the difference in time from the current time zone, to the new time zone that you select.
Updating Session Times in Chart after Time Zone Changes
Whenever the time zone has been changed globally within Sierra Chart or for an individual chart, it is necessary to check the Session Times in the affected charts.
When you have changed the Global Time Zone, then all charts are going to be affected.
The Session Times for the chart are always relative to the time zone the chart is using. To adjust the session times select Chart >> Chart Settings. The settings are in the Session Times frame.
If the Session Times >> Start Time is set to 00:00:00 and the Session Times >> End Time is set to 23:59:59, then no changes are necessary. If they are set to follow the exchange trading sessions, then verify they are correct relative to the time zone the chart is using. Make the changes as needed and press OK.
Resolving Differences with the Transition To/From Daylight Savings Time in Different Time Zones
When the Global Time Zone setting or the chart specific Time Zone differs from the time zone the Symbol of the chart trades in and these two time zones have different rules for when transitioning to Daylight Saving Time and transitioning from Daylight Savings Time, then there will be a problem with the display of accurate times in the chart near the time where Daily Savings Time changes or when Daylight Savings Time is in effect.
The only definitive to solution to this, is that you must set either the Time Zone in the chart if you are using the chart specific Time Zone setting, or the Global Time Zone to the same time zone of the exchange where the symbol trades. Or use a Time Zone that follows the exact same Daylight Savings Time rules.
There is no other possibility to solve this kind of issue.
*Last modified Wednesday, 18th May, 2022.