World Emoji Day is an unofficial holiday celebrated on July 17.The day is deemed a "global celebration of emoji" and is primarily celebrated online. Celebrated annually since 2014, NBC reported that the day was Twitter's top trending item on July 17 in 2015.
World Emoji Day is "the brainchild of Jeremy Burge" according to CNBC who stated that "London-based founder of Emojipedia created it" in 2014.
The New York Times reported that Burge created this on July 17 "based on the way the calendar emoji is shown on iPhones". For the first World Emoji Day, Burge told The Independent "there were no formal plans put in place" other than choosing the date.
Google changed the appearance of Unicode character U+1F4C5 📅 CALENDAR to display July 17 on Android, Gmail and Hangouts products in 2016