! scope="row" | [https://webmaker.org/en-US/events/guides/hack-jam/ Hack Jam hosts]
| style="background:LimeGreenYellowGreen" | 1400 UTC ([http://everytimezone.com/#2012-6-20,120,5x1 more timezones])| style="background:LimeGreenYellowGreen" | 0500 UTC ([http://everytimezone.com/#2012-6-21,-420,5x1 more timezones])| style="background:LimeGreenYellowGreen" | 1700 UTC ([http://everytimezone.com/#2012-6-21,300,5x1 more timezones])
|-
! scope="row" | [https://webmaker.org/en-US/events/guides/pop-up/ Pop Up hosts]