handle very old date strings

src-ui/src/app/utils/date.ts

@@ -0,0 +1,5 @@
+// see https://github.com/dateutil/dateutil/issues/878 , JS Date does not
+// seem to accept these strings as valid dates so we must normalize offset
+export function normalizeDateStr(dateStr: string): string {
+  return dateStr.replace(/-(\d\d):\d\d:\d\d/gm, `-$1:00`)
+}