LOL you know you guys can organize these things. The one who mention it should jump on it and organize it.😁
But anyways if it were Japan and Suriname at first it wouldn't be difficult to organize.
https://www.timeanddate.com/worldclock/converter.html?iso=20210410T000000&p1=248&p2=194&p3=136
But add Uk and Germany to that and it gets a little bit tricky.
When is a good date you beleive?