add logic to send a time for notifications

src/libs/util.ts

@@ -56,9 +56,13 @@ export function iconForUnitCode(unitCode: string) {
 }
 
 // from https://stackoverflow.com/a/175787/845494
+// ... though it appears even this isn't precisely right so keep doing "|| 0" or something in sensitive places
 //
 export function isNumeric(str: string): boolean {
-  return !isNaN(+str);
+  // This ignore commentary is because typescript complains when you pass a string to isNaN.
+  // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+  // @ts-ignore
+  return !isNaN(str) && !isNaN(parseFloat(str));
 }
 
 export function numberOrZero(str: string): number {