try to fix timezone

freifunk-mgmt/files/director/main.js

 const regions = {
   "saarbruecken": {
     domain: "sb",
-    switch_time: new Date('2020-12-02T12:00:00').getTime()/1000,
+    switch_time: new Date.UTC(2020, 12, 2, 12, 0, 0).getTime()/1000,
   },
   "st-wendel": {
     domain: "wnd",