The Lent of Summer or of the Holy Apostles, is in the month of June during the harvest, but it does not have a specific and fixed duration.
It depends on when Easter is.
In the days of old, before the internet and before churches handed out calendars, when pious people wanted to figure out how long the Apostles' Fast would be in a particular year, which was important because it usually fell during the June harvest season, they figured out in a practical way when it would be and how long it would last. They did this by remembering the following saying:
"As many days as there are left in April and three in May."
It depends on when Easter is.
In the days of old, before the internet and before churches handed out calendars, when pious people wanted to figure out how long the Apostles' Fast would be in a particular year, which was important because it usually fell during the June harvest season, they figured out in a practical way when it would be and how long it would last. They did this by remembering the following saying:
"As many days as there are left in April and three in May."
("Όσες μέρες περισσεύουν του Απρίλη και τρεις του Μάη.")