Dress uniforms were a variant of the standard Starfleet uniforms worn for special occasions, such as weddings, courts martial, funerals, and the greeting of ambassadorial delegations and heads of state.
Canada Day in Canada. On July 1, 1867, Canada became a self-governing dominion of Great Britain and a federation of four provinces: Nova Scotia; New Brunswick; Ontario; and Quebec. The anniversary of this date was called Dominion Day until 1982. Since 1983, July 1 has been officially known as Canada Day.
Evenings can still be cool, though, so as is always the case when coming to Canada, bring layers so you can adapt to ever-changing temperatures and climates. The complete gamut of summer festivals, including Canada's biggest birthday party - Canada Day - is in full swing and the days are warm and long. In 2017, in celebration of Canada's 150th birthday, Parks Canada is opening up its national parks, heritage sites and marine conservation areas for free.