Need help finding release dates for key Japanese economic events

I am modelling the Nikkei for a time series analysis - need to identify key dates during my time period - 15 years. I need the release date for market moving economic reports / central bank meeting times (scheduled and unscheduled). Economic report would include Japan's employment report (once a month), GDP report (once a month) and retail sales reports (once a month) for the past 15 years. You can usually find these things online - but it is tedious and time consuming. Please find the dates of these reports and save them in a text file with the date format YYMMDD; (YY is last 2 of year). Thank you for your time.