Google Summer of Code 2025 Timeline

January 27 - 18:00 UTC

  • Mentoring organizations can begin submitting applications to Google

February 11 - 18:00 UTC

  • Mentoring organization application deadline

February 11 - 26

  • Google program administrators review organization applications

February 27 - 18:00 UTC

  • List of accepted mentoring organizations published

February 27 - March 24

  • Potential GSoC contributors discuss application ideas with mentoring organizations

March 24 - 18:00 UTC

  • GSoC contributor application period begins

April 8 - 18:00 UTC

  • GSoC contributor application deadline

April 29 - 18:00 UTC

  • GSoC contributor proposal rankings due from Org Admins

May 8 - 18:00 UTC

  • Accepted GSoC contributor projects announced

May 8 - June 1

  • Community Bonding Period | GSoC contributors get to know mentors, read documentation, get up to speed to begin working on their projects

June 2

  • Coding officially begins!

July 14 - 18:00 UTC

  • Mentors and GSoC contributors can begin submitting midterm evaluations (for standard 12 week coding projects)

July 18 - 18:00 UTC

  • Midterm evaluation deadline (standard coding period)

July 14 - August 25

  • Work Period | GSoC contributors work on their project with guidance from Mentors

August 25 - September 1 - 18:00 UTC

  • Final week: GSoC contributors submit their final work product and their final mentor evaluation (standard coding period)

September 1 - 8 - 18:00 UTC

  • Mentors submit final GSoC contributor evaluations (standard coding period)

September 1 - November 9

  • GSoC contributors with extended timelines continue coding

November 10 - 18:00 UTC

  • Final date for all GSoC contributors to submit their final work product and final evaluation

November 17 - 18:00 UTC

  • Final date for mentors to submit evaluations for GSoC contributor projects with extended deadlines