diff --git a/site-before-rework-June2015/js/commits.js b/site-before-rework-June2015/js/commits.js
index 03f1a4b..d9468d5 100644
--- a/site-before-rework-June2015/js/commits.js
+++ b/site-before-rework-June2015/js/commits.js
@@ -1,27 +1,40 @@
-function buildCommits()
-{
-  var allCommits = [];
-  var timelines = [];
-    for ( var i = 0; i < reposTab.length; ++i )
-	{
-        var thisRepo = reposTab[i].repo;
-        var thisCommits = reposTab[i].commits;
-		for ( var j = 0; j < thisCommits.length; ++j )
-		{
-			var thisCommit = thisCommits[j];
-			thisCommit.repo = thisRepo.name;
-			thisCommit.authorDate = d3.time.format.iso.parse(thisCommit.authorDate);
-			thisCommit.commitDate = d3.time.format.iso.parse(thisCommit.commitDate);
-		}
-	    var timeline = {
-	      repo: thisRepo.name,
-	      earliest: thisCommits[thisCommits.length - 1].commitDate,
-	      latest: thisCommits[0].commitDate
-	    };
-	    allCommits.push.apply(allCommits, thisCommits);
-	    timelines.push(timeline);
-	}
-	drawChart(allCommits, timelines);
+function buildCommits() {
+    if (!reposTab || !Array.isArray(reposTab)) {
+        console.error("reposTab is undefined or not an array.");
+        return;
+    }
+
+    const allCommits = [];
+    const timelines = [];
+    const parseDate = d3.timeParse("%Y-%m-%dT%H:%M:%S.%LZ"); // Adjust format as needed
+
+    for (let i = 0; i < reposTab.length; ++i) {
+        const thisRepo = reposTab[i].repo;
+        const thisCommits = reposTab[i].commits;
+
+        if (!thisCommits || thisCommits.length === 0) {
+            console.warn(`No commits found for repo: ${thisRepo.name}`);
+            continue;
+        }
+
+        for (let j = 0; j < thisCommits.length; ++j) {
+            const thisCommit = thisCommits[j];
+            thisCommit.repo = thisRepo.name;
+            thisCommit.authorDate = parseDate(thisCommit.authorDate);
+            thisCommit.commitDate = parseDate(thisCommit.commitDate);
+        }
+
+        const timeline = {
+            repo: thisRepo.name,
+            earliest: thisCommits[thisCommits.length - 1].commitDate,
+            latest: thisCommits[0].commitDate
+        };
+
+        allCommits.push(...thisCommits);
+        timelines.push(timeline);
+    }
+
+    drawChart(allCommits, timelines);
 }
 
 buildCommits();