After many months of neglect, I have updated the online calendar of Japanese elections. This entailed crawling round all the Prefectural Election Boards' websites to find out the dates of upcoming elections. Unfortunately only 28 prefectures post the actual dates of upcoming elections rather than simply the end of the current candidates's terms. I'll try to find other sources of information about the remaining prefectures. Thanks to Joe Sasanuma of Boston College for encouraging me to update the calendar.