This idea has been merged into another idea. To comment or vote on this idea, please visit CT-I-15 Timezone Responsive Countdown Timer - Specific End Date.
I feel like this is a really important feature if you are using the timer for a time limited sale which is selling globally, as you need to timer to end at the correct time. Otherwise for example you are running a sale in the UK and it ended at midnight UK time, it will still look like it is still available to countries in a timezone behind.