The Prime Minister has just announced the election date as 19 September. So, its a Suffrage Day election, and well before the Trump hits the fan in the US.
The no-longer-new practice of announcing the election date well in advance is good, and puts everyone on a more even footing compared to the bad old days when the PM could literally get drunk and announce it for next month. At the same time, by getting to choose, the government gets to choose the most advantageous timing for themselves, which is hardly a level electoral playing field. It would be much better if this power was removed from the hands of politicians, and instead the date was legislated, so as to end political game-playing with our democracy.