septêmbra♦♦♦ prisl. in September
septembra [lani, letos] in September of [last, this] year, [last, this] September
konec septembra at the end of September, in late September
sredi septembra in mid September
v začetku septembra at the beginning of September, in early September
[17., 19.] septembra on the [17th, 19th] of September, on September [17th, 19th]