Fix NaN bug that occurs when no (early) prelims time is found

index.js

@@ -49,19 +49,24 @@ async function createICS() {
           event.mainCard.join("\n") +
           "\n";
       if (event.prelims.length) {
-        let prelimsTime = new Date(parseInt(event.prelimsTime) * 1000);
-        let hoursAgo = (date - prelimsTime) / 1000 / 60 / 60;
-        description += `\nPrelims (${hoursAgo} hrs before Main)\n--------------------\n${event.prelims.join(
-          "\n"
-        )}\n`;
+        description += "\nPrelims";
+        if (event.prelimsTime) {
+          let prelimsTime = new Date(parseInt(event.prelimsTime) * 1000);
+          let hoursAgo = (date - prelimsTime) / 1000 / 60 / 60;
+          description += ` (${hoursAgo} hrs before Main)`;
+        }
+        description += `\n--------------------\n${event.prelims.join("\n")}\n`;
       }
       if (event.earlyPrelims.length) {
-        let earlyPrelimsTime = new Date(
-          parseInt(event.earlyPrelimsTime) * 1000
-        );
-        let hoursAgo = (date - earlyPrelimsTime) / 1000 / 60 / 60;
-        if (!hoursAgo) console.log("hoursAgo", date, earlyPrelimsTime);
-        description += `\nEarly Prelims (${hoursAgo} hrs before Main)\n--------------------\n${event.earlyPrelims.join(
+        description += "\nEarly Prelims";
+        if (event.earlyPrelimsTime) {
+          let earlyPrelimsTime = new Date(
+            parseInt(event.earlyPrelimsTime) * 1000
+          );
+          let hoursAgo = (date - earlyPrelimsTime) / 1000 / 60 / 60;
+          description += ` (${hoursAgo} hrs before Main)`;
+        }
+        description += `\n--------------------\n${event.earlyPrelims.join(
           "\n"
         )}\n`;
       }