Hot answers tagged time-zones
Make it explicit that the scheduled campaign will run in the LA timezone to reduce any confusion. MailChimp does it quite nicely with their Delivery by Time Zone feature http://mailchimp.com/features/timewarp/
The user will be expecting it to be, by default, in their time zone. Anything other than this will cause confusion. However as @RizwanJavaid has highlighted, for some markets/projects (and I would say social media is one) it is perfectly well expected to be able to change this.
I often find myself one time zone away on trips, and dealing with my calendar on OS X or Windows Office is a mine field. I can summarize the problem as "too many choices": The calendar programs all try to do something clever, and not only do they not do what I need but I never quite know what to expect. Configuration options only make matters worse, because ...
You try your best in displaying the times in the time zones users are expecting to see the data in. For most scientific datasets, the viewer is trying to understand patterns from the data of a particular region. In this case, the viewer's time zone is irrelevant. Display data using time zone of the region where it's captured. To use an extreme example, ...
Possibility: Pick a timezone by default (e.g., UTC) and then have a way for the user to choose a different timezone to use. (Or, ask the user for the timezone first, or have that timezone as a preference in their user settings that they can change.)
Plotting data with non-local timezones was a problem in one of the projects I engineer'ed at. Soon after the product's launch, we noticed a problem when we viewed data about buildings in New York from computers in California that had never surfaced in our automated testing or manual QA efforts: all of our charts for New York buildings displayed times on ...
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