Similarly to how there is config_override to override configuration options, we should also add a time_zone_override for setting Time.zone locally for a test to avoid this code:
        before do
          # if this is actually your time zone, the following tests are useless
          Time.zone = "Stockholm"
        end
        after do
          Time.zone = nil
        end
- is related to
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MONGOID-5438 Implement local override for i18n parameters
-         
 - Closed
 
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- related to
 - 
                    
MONGOID-5261 Use config_override when a test requires a certain configuration option value
-         
 - Closed
 
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