The 2018 dates list can be viewed on the website and will be updated regularly – the link is https://1drv.ms/x/s!AhfP23SonSCHgk5TWu-QgeDTgsPo

There is also a View at a Glance dates list – https://1drv.ms/x/s!AhfP23SonSCHhBX-hJG4XxPdYjMK