The beginning of the league matches the start of the Apertura, 19-game championship, and the end matches the finish of the Clausura, 19-game championship.

The ISO does present a standard for identifying weeks, but as it does not match up with Gregorian calendar (the beginning and ending days of a given year do not match up), this standard is somewhat more problematic than the other standards for dates.

The beginning of the oshirogo matches in Edo, seat of the Tokugawa government, meant that at the end of each year, Sansa had to travel east for a month.

The 1932 English cricket season saw the beginning of England's Test matches against India.