The famous ‘White Nights’ (Beliye Nochi) of St Petersburg, which occur from 11 June to 2 July, are a unique phenomenon. Because the city is located at 60 degrees North the sun does not dip deep enough below the horizon for the sky to grow dark around the time of the summer solstice.
You can also subscribe to the AIMS calendar in your calendaring application of choice, whether on your phone, tablet or computer. Simply subscribe to webcal://aims-worldrunning.org/events.ics in your calendar app.