diff --git a/src/adminPage/adminSnapshots.js b/src/adminPage/adminSnapshots.js
index 4e4057b..5272d27 100644
--- a/src/adminPage/adminSnapshots.js
+++ b/src/adminPage/adminSnapshots.js
@@ -24,8 +24,8 @@ async function manageSnapshots(snapshotTable) {
         snapshotTable.appendChild(snapshotsUL)
 
         sortedSnapshotFileNames.reverse(function (x, y) {
-            const timestampx = x.substring(x.lastIndexOf('-')+1, x.indexOf('.ttl'))
-            const timestampy = y.substring(y.lastIndexOf('-')+1, y.indexOf('.ttl'))
+            const timestampx = getTimestampFromSnapshot(x)
+            const timestampy = getTimestampFromSnapshot(y)
             return timestampx - timestampy;
         })
 
@@ -39,7 +39,7 @@ async function manageSnapshots(snapshotTable) {
 
             const timestampDiv = document.createElement('div')
             timestampDiv.setAttribute('class', 'timstampDiv')
-            const timestamp = sortedSnapshotFileNames[i].substring(sortedSnapshotFileNames[i].lastIndexOf('-') + 1, sortedSnapshotFileNames[i].indexOf('.ttl'))
+            const timestamp = getTimestampFromSnapshot(sortedSnapshotFileNames[i])
             timestampDiv.textContent = (new Date(parseInt(timestamp))).toISOString()
 
             const userDiv = document.createElement('div')
diff --git a/src/adminPage/snapshots/snapshot.js b/src/adminPage/snapshots/snapshot.js
index d9018ab..0fae97c 100644
--- a/src/adminPage/snapshots/snapshot.js
+++ b/src/adminPage/snapshots/snapshot.js
@@ -48,8 +48,8 @@ async function createSnapshot(store, currentKG, nameOfSnapshot) {
 
 function deleteOlderSnapshots(store, snapshots, threshold) {
     snapshots.sort(function (x, y) {
-    const timestampx = x.substring(x.lastIndexOf('-')+1, x.indexOf('.ttl'))
-    const timestampy = y.substring(y.lastIndexOf('-')+1, y.indexOf('.ttl'))
+    const timestampx = getTimestampFromSnapshot(x)
+    const timestampy = getTimestampFromSnapshot(y)
     return timestampx - timestampy;
     })
     for (let i = 0; i < snapshots.length-threshold; i++) {
@@ -109,4 +109,8 @@ async function getSnapshotWithoutAdditionalTriples(store, linkToResource) {
     loadedResource = await store.fetcher.load(linkToResource)
     await store.updater.update([], creator.concat(modified))
     return loadedResource
+}
+
+function getTimestampFromSnapshot(snapshot) {
+    return snapshot.substring(snapshot.lastIndexOf('-')+1, snapshot.lastIndexOf('.'))
 }
\ No newline at end of file