Dates in Spanish are expressed with el + day + de
+ month
Nos vamos el 15 de diciembre
– We are leaving on 15 Dezember
Van a volver el 1 de junio – They
are going back on 1st June
If you want to mention only the month, you must use en:
Van a volver en junio – The will be back in
June
Months in Spanish are used without any article and in lower case.