Pint (Ontario), about 1 litre versus 0.5 litres. After four of the British provinces united in the Canadian Confederation in 1867, Canada legally adopted the British imperial system of measure in 1873, making Canadian liquid units incompatible with American ones from that year forward. In 1873, the French Canadian "pinte" was defined as being one imperial quart or two imperial pints, while the imperial pint was legally called a "chopine" in French Canada. Canadian imperial units of liquid measure remain incompatible with American traditional units to this day, and although the Canadian pint, quart, and gallon are still legal units of
Pint Act (R.S. 1985), which has the laws in English and French printed side-by-side, defines a pint in English as 1/8 of a gallon, but defines a pinte in French as 1/4 of a gallon. Thus, if you speak English and order "a pint of beer", servers are legally required to serve you 568 ml of beer, but if you speak French and order ""une pinte de bière"", they are legally required to serve an Imperial quart ("une pinte"), which is 1136 ml—twice as much. To order an Imperial pint when speaking French in Canada, one must instead order "une chopine