The US technology giant found itself under fire in April as the European Commission said its requirement that mobile phone manufacturers pre-install Google Search and the Google Chrome browser in order to get access to other Google apps may harm consumers and competition.
The EU watchdog had originally given Google until July 27 to reply to the charges.
"The Commission has agreed to extend Google's deadline to respond to its Statement of Objections concerning Android and its applications until 7 September. Google asked for additional time to review the documents in the case file," Commission spokesman Ricardo Cardoso said in an email.
Google, which can face fines up to $7.4 billion (roughly Rs. 49,684 crores) or 10 percent of its global turnover for each antitrust case, did not immediately respond to a request for comments.
Google is also fighting an EU accusation that it favours its shopping service in Internet search results over rivals.
© Thomson Reuters 2016