forum.wordreference.com6 months agoon or in date (eg. July 7, 2009) - WordReference ForumsJul 7, 2009 · For a specific date, you need to use on - on July 7, 2009. For a month or a year or a season, use in - in July / in 2009 / in the summer.Visit forum.wordreference.com1BookmarkAdd to collection