xavmasti lujvo

x1 is June/the sixth month of year x2 in calendar x3.

Duration. For date, use masnxa. Cf. pavmasti, nanca.

In notes:

matsi'uma'i
x1 is June of year x2 in calendar x3.
pavmasti
x1 is January/the first month of year x2 in calendar x3.
xavmast
June.