i think its better to stick to day/month/year  format instead of day-month-year.

The reason is that the mentioned date format is used in our log.html file. So lets be consistent in this area.
See:
http://qa-s1.wikia-prod:8080/view/parametersTesting/job/test-group2/label=qa-vm05-webdriver/47/artifact/logs/log.html