(@Naxza) Because of the Fixed Term act, for elections, which specifies 5 years, the next
anticipated UK General Eection is May 2024, because the previous one was late last year and it's supposed to be a given day in May in the fifth year hence from the prior election, unless that prior election was even earlier in the year in which case it's the May four years hence.
In the few years since we've had the Fixed Term Act in place (since 2011), apart from the inbuilt 'first' iteration of May 2015, no term has gone to 5 years, because the mechanism has get-outs to 'allow' an early election. Prior to the Act, this was usually at the sole whim of the PM/government (to gain 'advantage', at least perceived), where not forced by No Confidence votes/whatever. Since then it has needed ⅔rds of MPs to agree, and (politics being what it is) the Opposition has never felt it politic to (sufficiently) oppose the suggestion... Sort of like Marty McFly being goaded into an action by suggestions that he's a chicken.
That said, it has had mixed results. In 2017, Theresa May thought she could reinforce her situation (perhaps "Brexit, but not a hard one") and ended up with a surprisingly large loss of support just short of losing power, but it weakened her (and strengthened her Harder-Brexit 'allies', who could not now be ignored as a fringe group), and basically led to her having to relinquish leadership because of the internal Hard Brexiteers. She mostly lost ground due to the popular rise of Corbyn (and other 'minority oppositions'), and it led to Boris Johnson taking over, with a nominal 2022 'next election' but sub-minimal Conservative control over the imminent "Brexit deadline" of early '20.
Johnson didn't like that, and called his early election in 2019, as mentioned. By good luck or good judgement, or maybe because he had people that were better at the devious backroom plotting than May had, his results benefited from an "unpopularity fall" of Corbyn, and he got what May had wanted (but with the emphasis of Hard Brexit support being what it seems he was after, and courted, and capitalised upon). Though I think he was at least partially lucky to have an upswing just as Labour had a downswing, due to a number of not-really-Brexit issues, as virtually all parties had their own internal splits due to the B-Word (plus racism, plus the nature of their current/prospective leaderships, etc), and the News Cycles between the calling of the election and the day of the vote were always going to be very unpredictable, even/especially with the backroom gurus 'spinning' the issues involved.
So, probably, we aren't going to vote within the next year, well, half a year... But who knows. If Boris hadn't survived hospital, who knows, but it seems he's not (yet) been handed the Black Spot by cabinet, government, parliament or electorate - or not yet enough of one to start to get people guessing how they can try to force an election into being with Covid acting as a confounding factor (the opposite to what Trump may be thinking... If he can't engineer enough Good News for his liking, what can he do to 'legitimately' hold off November).
Thus, unlike in the US, we aren't (expecting to be) voting any time soon. But even in the midst of the Pandemic, we're obviously being geared up to do the early-2021 Brexity thing (the thing the early-2020 Brexity thing set up to happen), and for that we need not to
look like the film 28 Days Later is happening for real (even if it means that in trying not to look like it, we actually end up more like it than we needed to), to get the 'best' out of things. I think some of those in charge (behind the scenes) would have prefered the (in-universe hoped-for) Edge Of Tomorrow template of Europe being over-run, where we just need to prove we have the wherewithall to re-enact D-Day and save the day, generously allowing the Yanks to tag along and give them a purpose in life or something...
(Though, at one point, it looked more like Day Of The Triffids was the model, where the Isle Of White was going to be the start of the global fight back against the menace, but with surveillance and smartphones instead of surveillance and flame-throwers.)