diff --git a/consumer/src/index.ts b/consumer/src/index.ts
index a45c305..5fa8554 100644
--- a/consumer/src/index.ts
+++ b/consumer/src/index.ts
@@ -65,7 +65,7 @@ async function processStreamEntry(data: Record<string, string>) {
 
 async function process_visit(data: Record<string, string>, sessionHash: string) {
 
-    const { pid, ip, website, page, referrer, userAgent, flowHash } = data;
+    const { pid, ip, website, page, referrer, userAgent, flowHash, timestamp } = data;
 
     let referrerParsed;
     try {
@@ -90,6 +90,7 @@ async function process_visit(data: Record<string, string>, sessionHash: string)
             flowHash,
             continent: geoLocation[0],
             country: geoLocation[1],
+            created_at: new Date(parseInt(timestamp))
         }),
         ProjectCountModel.updateOne({ project_id: pid }, { $inc: { 'visits': 1 } }, { upsert: true }),
         ProjectLimitModel.updateOne({ project_id: pid }, { $inc: { 'visits': 1 } })
@@ -99,7 +100,7 @@ async function process_visit(data: Record<string, string>, sessionHash: string)
 
 async function process_keep_alive(data: Record<string, string>, sessionHash: string) {
 
-    const { pid, instant, flowHash } = data;
+    const { pid, instant, flowHash, timestamp } = data;
 
     const existingSession = await SessionModel.findOne({ project_id: pid, session: sessionHash }, { _id: 1 });
     if (!existingSession) {
@@ -124,7 +125,7 @@ async function process_keep_alive(data: Record<string, string>, sessionHash: str
 
 async function process_event(data: Record<string, string>, sessionHash: string) {
 
-    const { name, metadata, pid, flowHash } = data;
+    const { name, metadata, pid, flowHash, timestamp } = data;
 
     let metadataObject;
     try {
@@ -134,7 +135,10 @@ async function process_event(data: Record<string, string>, sessionHash: string)
     }
 
     await Promise.all([
-        EventModel.create({ project_id: pid, name, flowHash, metadata: metadataObject, session: sessionHash }),
+        EventModel.create({
+            project_id: pid, name, flowHash, metadata: metadataObject, session: sessionHash,
+            created_at: new Date(parseInt(timestamp))
+        }),
         ProjectCountModel.updateOne({ project_id: pid }, { $inc: { 'events': 1 } }, { upsert: true }),
         ProjectLimitModel.updateOne({ project_id: pid }, { $inc: { 'events': 1 } })
     ]);
diff --git a/producer/src/index.ts b/producer/src/index.ts
index 8b5cb1e..a01a081 100644
--- a/producer/src/index.ts
+++ b/producer/src/index.ts
@@ -21,7 +21,9 @@ app.post('/event', express.json(jsonOptions), async (req, res) => {
         const ip = getIPFromRequest(req);
         const sessionHash = createSessionHash(req.body.website, ip, req.body.userAgent);
         const flowHash = createFlowSessionHash(req.body.pid, ip, req.body.userAgent);
-        await RedisStreamService.addToStream(streamName, { ...req.body, _type: 'event', sessionHash, ip, flowHash });
+        await RedisStreamService.addToStream(streamName, { 
+            ...req.body, _type: 'event', sessionHash, ip, flowHash
+         });
         return res.sendStatus(200);
     } catch (ex: any) {
         return res.status(500).json({ error: ex.message });
diff --git a/shared/services/DateService.ts b/shared/services/DateService.ts
index 9b535ba..e30c70e 100644
--- a/shared/services/DateService.ts
+++ b/shared/services/DateService.ts
@@ -50,7 +50,7 @@ class DateService {
         // 3 Days
         if (slice === 'hour' && (days > 3)) return [false, 'Date gap too big for this slice'];
         // 3 Weeks
-        if (slice === 'day' && (days > 7 * 3)) return [false, 'Date gap too big for this slice'];
+        if (slice === 'day' && (days > 31)) return [false, 'Date gap too big for this slice'];
         // 3 Months
         if (slice === 'week' && (days > 30 * 3)) return [false, 'Date gap too big for this slice'];
         // 3 Years
@@ -114,6 +114,9 @@ class DateService {
         return { group, sort }
     }
 
+    /**
+    * @deprecated interal to generateDateSlices
+    */
     prepareDateRange(from: string, to: string, slice: Slice) {
 
         let fromDate = dayjs(from).minute(0).second(0).millisecond(0);
@@ -134,6 +137,9 @@ class DateService {
         }
     }
 
+    /**
+    * @deprecated interal to generateDateSlices
+    */
     createBetweenDates(from: string, to: string, slice: Slice) {
         let start = dayjs(from);
         const end = dayjs(to);
@@ -145,6 +151,9 @@ class DateService {
         return { dates: filledDates, from, to };
     }
 
+    /**
+     * @deprecated use generateDateSlices
+     */
     fillDates(dates: string[], slice: Slice) {
         const allDates: dayjs.Dayjs[] = [];
         const firstDate = dayjs(dates.at(0));
@@ -161,6 +170,9 @@ class DateService {
         return allDates;
     }
 
+    /**
+     * @deprecated use mergeDates
+     */
     mergeFilledDates<T extends Record<string, any>, K extends keyof T>(dates: dayjs.Dayjs[], items: T[], dateField: K, slice: Slice, fillData: Omit<T, K>) {
         const result = new Array<T>();
         for (const date of dates) {
@@ -170,6 +182,52 @@ class DateService {
         return result;
     }
 
+    generateDateSlices(slice: Slice, fromDate: Date, toDate: Date) {
+        const slices: Date[] = [];
+        let currentDate = fromDate;
+        const addFunctions: { [key in Slice]: any } = { hour: fns.addHours, day: fns.addDays, week: fns.addWeeks, month: fns.addMonths, year: fns.addYears };
+        const addFunction = addFunctions[slice];
+        if (!addFunction) { throw new Error(`Invalid slice: ${slice}`); }
+        while (fns.isBefore(currentDate, toDate) || currentDate.getTime() === toDate.getTime()) {
+            slices.push(currentDate);
+            currentDate = addFunction(currentDate, 1);
+        }
+        return slices;
+    }
+
+    mergeDates(timeline: { _id: string, count: number }[], dates: Date[], slice: Slice) {
+
+        const result: { _id: string, count: number }[] = [];
+
+        const isSames: { [key in Slice]: any } = { hour: fns.isSameHour, day: fns.isSameDay, week: fns.isSameWeek, month: fns.isSameMonth, year: fns.isSameYear, }
+
+        const isSame = isSames[slice];
+
+        if (!isSame) {
+            throw new Error(`Invalid slice: ${slice}`);
+        }
+
+        for (const element of timeline) {
+            const elementDate = new Date(element._id);
+            for (const date of dates) {
+                if (isSame(elementDate, date)) {
+                    const existingEntry = result.find(item => isSame(new Date(item._id), date));
+
+                    if (existingEntry) {
+                        existingEntry.count += element.count;
+                    } else {
+                        result.push({
+                            _id: date.toISOString(),
+                            count: element.count,
+                        });
+                    }
+                }
+            }
+        }
+
+        return result;
+    }
+
 }
 
 const dateServiceInstance = new DateService();
diff --git a/shared/services/RedisStreamService.ts b/shared/services/RedisStreamService.ts
index a5ad0a2..33e9719 100644
--- a/shared/services/RedisStreamService.ts
+++ b/shared/services/RedisStreamService.ts
@@ -93,7 +93,7 @@ export class RedisStreamService {
     }
 
     static async addToStream(streamName: string, data: Record<string, string>) {
-        const result = await this.client.xAdd(streamName, "*", data);
+        const result = await this.client.xAdd(streamName, "*", { ...data, timestamp: Date.now().toString() });
         return result;
     }