diff --git a/public/admin.js b/public/admin.js
index 4f9394a..6497503 100644
--- a/public/admin.js
+++ b/public/admin.js
@@ -174,7 +174,7 @@ async function setRecordSettings() {
 
 document.getElementById('require-join').addEventListener('change', async e => {
     const requireJoin = e.target.checked ? 1 : 0;
-    await PUT(`/businesses${getBusinessId()}/settings/requirejoin?new=${requireJoin}`);
+    await PUT(`/businesses/${getBusinessId()}/settings/requirejoin?new=${requireJoin}`);
 });
 
 function validateEventTime(startDate, endDate, startTime, endTime, isRepeating = false) {
@@ -217,8 +217,8 @@ document.getElementById('submitevent').addEventListener('click', () => {
     const starttime = document.getElementById('starttime').value;
     const enddate = document.getElementById('enddate').value;
     const endtime = document.getElementById('endtime').value;
-    const starttimestamp = new Date(startdate + 'T' + starttime).getTime() / 1000;
-    const endtimestamp = new Date(enddate + 'T' + endtime).getTime() / 1000;
+    const starttimestamp = new Date(startdate + 'T' + starttime).getTime();
+    const endtimestamp = new Date(enddate + 'T' + endtime).getTime();
     const isRepeating = document.getElementById('repeat').checked;
     const allTags = document.getElementById('all-tags');
 
@@ -242,7 +242,7 @@ document.getElementById('submitevent').addEventListener('click', () => {
     if (isRepeating) {
         const frequency = document.getElementById('frequency').value.toLowerCase();
         const interval = document.getElementById('interval').value;
-        const timezoneOffsetMS = new Date().getTimezoneOffset() * 60 * 1000;
+        const timezoneOffsetMS = new Date().getTimezoneOffset() * 60_000;
         let daysoftheweek = [];
         let counter = 0;
         if (interval < 1) {
@@ -322,8 +322,8 @@ function getEventData() {
     GET(`/businesses/${getBusinessId()}/events/${getEventId()}`).then(res =>
         res.json().then(eventinfo => {
             tagHTMLString(eventinfo.tag);
-            var startDate = new Date(eventinfo.starttimestamp * 1000);
-            var endDate = new Date(eventinfo.endtimestamp * 1000);
+            var startDate = new Date(+eventinfo.starttimestamp);
+            var endDate = new Date(+eventinfo.endtimestamp);
             document.getElementById('eventdetails').innerHTML = /* html */ `
             <label for="update-name">Name:</label><br>
             <input style="min-width: var(--max-width-medium);" type="text" value="${sanitizeText(
@@ -409,7 +409,7 @@ function getEventData() {
 
                 const startdate = document.getElementById('update-startdate').value;
                 const starttime = document.getElementById('update-starttime').value;
-                const starttimestamp = new Date(startdate + 'T' + starttime).getTime() / 1000;
+                const starttimestamp = new Date(startdate + 'T' + starttime).getTime();
 
                 DELETE(
                     `/businesses/${getBusinessId()}/events/${getEventId()}?repeatEffect=${repeatEffect}&starttimestamp=${starttimestamp}&repeatId=${
@@ -478,8 +478,8 @@ function getEventData() {
                 const starttime = document.getElementById('update-starttime').value;
                 const enddate = document.getElementById('update-enddate').value;
                 const endtime = document.getElementById('update-endtime').value;
-                const starttimestamp = new Date(startdate + 'T' + starttime).getTime() / 1000;
-                const endtimestamp = new Date(enddate + 'T' + endtime).getTime() / 1000;
+                const starttimestamp = new Date(startdate + 'T' + starttime).getTime();
+                const endtimestamp = new Date(enddate + 'T' + endtime).getTime();
                 const starttimedelta = starttimestamp - eventinfo.starttimestamp;
                 const endtimedelta = endtimestamp - eventinfo.endtimestamp;
                 const allTags = document.getElementById('current-tags');
diff --git a/public/calendar.js b/public/calendar.js
index ec41250..73e30dd 100644
--- a/public/calendar.js
+++ b/public/calendar.js
@@ -60,8 +60,8 @@ for (const [i, business] of Object.entries(businesses)) {
     });
     business['events'] = [];
     for (const event of events) {
-        const startDate = new Date(event.starttimestamp * 1000);
-        const endDate = new Date(event.endtimestamp * 1000);
+        const startDate = new Date(+event.starttimestamp);
+        const endDate = new Date(+event.endtimestamp);
         const status = event.status ?? (Date.now() > endDate.getTime() ? 'ABSENT' : null);
         let edit = '<br>';
         const starttime = startDate.toLocaleTimeString(undefined, {
diff --git a/public/components/CircleLoader.js b/public/components/CircleLoader.js
index 537e58a..209c5a6 100644
--- a/public/components/CircleLoader.js
+++ b/public/components/CircleLoader.js
@@ -22,7 +22,7 @@ export class CircleLoader extends HTMLElement {
         // Create HTML for this component
         const html = htmlToElements(/* html */ `
             <div class="center">
-                <div class="tip"><p style="font-size: 18px;"><span style="color: var(--secondary); font-size: 22px; font-weight: 1000">&#9432;&#160;&#160;</span>${
+                <div class="tip"><p style="font-size: 18px;"><span style="color: var(--secondary); font-size: 22px">&#9432;&#160;&#160;</span>${
                     tips[randomTip]
                 }</p></div>
             </div>
diff --git a/public/components/Table.js b/public/components/Table.js
index 816e963..2d6feaf 100644
--- a/public/components/Table.js
+++ b/public/components/Table.js
@@ -164,8 +164,8 @@ export class Table extends Component {
         }
         // Event headers
         for (let i = 0; i < events.length; i++) {
-            var startDate = new Date(events[i].starttimestamp * 1000);
-            var endDate = new Date(events[i].endtimestamp * 1000);
+            var startDate = new Date(+events[i].starttimestamp);
+            var endDate = new Date(+events[i].endtimestamp);
             let eventName = events[i].name || '[Unnamed]';
             html += `<th style="min-width: max-content; text-wrap: nowrap;" class="cell" data-time="${sanitizeText(
                 events[i].starttimestamp,
@@ -227,7 +227,7 @@ export class Table extends Component {
                         if (statusColor[records[k].status]) {
                             color = statusColor[records[k].status];
                         }
-                        let recordTimestamp = new Date(records[k].timestamp * 1000)
+                        let recordTimestamp = new Date(+records[k].timestamp)
                             .toString()
                             .split(' ')
                             .slice(1, 5)
@@ -249,8 +249,7 @@ export class Table extends Component {
                     }
                 }
                 if (!statusupdate) {
-                    const status =
-                        Date.now() > parseInt(events[j].endtimestamp) * 1000 ? 'ABSENT' : 'N/A';
+                    const status = Date.now() > parseInt(events[j].endtimestamp) ? 'ABSENT' : 'N/A';
                     if (statusColor[status]) {
                         color = statusColor[status];
                     }
@@ -555,18 +554,14 @@ export class Table extends Component {
                         showCell &&
                         new Date(
                             this.shadowRoot.getElementById('filterstart').value + 'T00:00',
-                        ).getTime() /
-                            1000 <
-                            cell.dataset.time;
+                        ).getTime() < cell.dataset.time;
                 }
                 if (showend) {
                     showCell =
                         showCell &&
                         new Date(
                             this.shadowRoot.getElementById('filterend').value + 'T23:59',
-                        ).getTime() /
-                            1000 >
-                            cell.dataset.time;
+                        ).getTime() > cell.dataset.time;
                 }
                 if (eventName) {
                     showCell = showCell && cell.dataset.name === eventName;
diff --git a/public/groups.js b/public/groups.js
index 54d0706..18b0940 100644
--- a/public/groups.js
+++ b/public/groups.js
@@ -104,7 +104,7 @@ async function handleBusinessLoad(business) {
         dayOfTheWeekCounts[status] = [0, 0, 0, 0, 0, 0, 0];
     }
     for (const event of userdata.userEvents) {
-        const start = new Date(event.starttimestamp * 1000);
+        const start = new Date(+event.starttimestamp);
         const status = event.status || (start <= now ? 'ABSENT' : 'N/A');
         statusCounts[status]++;
         dayOfTheWeekCounts[status][start.getDay()]++;
@@ -172,14 +172,14 @@ async function handleBusinessLoad(business) {
             ${
                 userdata.userEvents
                     .sort((a, b) => a.starttimestamp - b.starttimestamp)
-                    .filter(ev => ev.starttimestamp * 1000 >= now)
+                    .filter(ev => ev.starttimestamp >= now)
                     .slice(0, 10)
                     .map(
                         ev =>
                             '<li>' +
                             sanitizeText(ev.name) +
                             ' - ' +
-                            sanitizeText(new Date(ev.starttimestamp * 1000).toDateString()) +
+                            sanitizeText(new Date(+ev.starttimestamp).toDateString()) +
                             '</li>',
                     )
                     .join('') || 'No upcoming events'
diff --git a/public/scanner.js b/public/scanner.js
index c790f81..ac67073 100644
--- a/public/scanner.js
+++ b/public/scanner.js
@@ -17,8 +17,8 @@ function canCreateEvent(role) {
 
 async function autoCreateEvent() {
     const date = new Date(); // current date and time
-    const starttimestamp = date.getTime() / 1000;
-    const endtimestamp = starttimestamp + 3600; // 1 hour
+    const starttimestamp = date.getTime();
+    const endtimestamp = starttimestamp + 3_600_000; // add 1 hour
     const name = date.toDateString();
     const description = 'Auto generated event created on ' + date.toString();
 
@@ -88,7 +88,7 @@ const eventInfo = await res.json();
 
 const { get: getStatus, set: setStatus } = useURL(
     'status',
-    Date.now() <= parseInt(eventInfo.starttimestamp) * 1000 ? 'PRESENT' : 'LATE',
+    Date.now() <= parseInt(eventInfo.starttimestamp) ? 'PRESENT' : 'LATE',
 );
 const statusSelector = document.getElementById('status');
 statusSelector.addEventListener('select', e => {
diff --git a/public/stats.js b/public/stats.js
index 77fa3a8..30ba162 100644
--- a/public/stats.js
+++ b/public/stats.js
@@ -7,15 +7,11 @@ await requireLogin();
 
 const { get: getBusinessId } = await initBusinessSelector('business-selector', async () => {
     const res = await GET(
-        `/businesses/${getBusinessId()}/attendance/statuscounts?tag=&role=&start=&end=${Math.round(
-            Date.now() / 1000,
-        )}`,
+        `/businesses/${getBusinessId()}/attendance/statuscounts?tag=&role=&start=&end=${Date.now()}`,
     );
     const memberAttArr = await res.json();
     const numRes = await GET(
-        `/businesses/${getBusinessId()}/events/count?tag=&start=&end=${Math.round(
-            Date.now() / 1000,
-        )}`,
+        `/businesses/${getBusinessId()}/events/count?tag=&start=&end=${Date.now()}`,
     );
     const numPastEvents = (await numRes.json())['total_count'];
     runMemberStatsTable(memberAttArr, numPastEvents);
@@ -219,7 +215,7 @@ document.getElementById('show-filter').onclick = async () => {
     document.getElementById('submit-filterform').onclick = async () => {
         let start = document.getElementById('filter-start').value;
         let end = document.getElementById('filter-end').value;
-        start = new Date(start + 'T00:00').getTime() / 1000;
+        start = new Date(start + 'T00:00').getTime();
         const month = new Date(Date.now()).getMonth() + 1;
         let monthString = month.toString();
         if (month < 10) monthString = '0' + month;
@@ -231,19 +227,18 @@ document.getElementById('show-filter').onclick = async () => {
                 '-' +
                 new Date(Date.now()).getDate()
         ) {
-            end =
-                new Date(
-                    end + 'T' + new Date().getHours() + ':' + new Date().getMinutes(),
-                ).getTime() / 1000;
+            end = new Date(
+                end + 'T' + new Date().getHours() + ':' + new Date().getMinutes(),
+            ).getTime();
         } else {
-            end = new Date(end + 'T23:59').getTime() / 1000;
+            end = new Date(end + 'T23:59').getTime();
         }
         if (isNaN(start)) start = '';
-        if (isNaN(end)) end = Math.round(Date.now() / 1000);
+        if (isNaN(end)) end = Math.round(Date.now());
         if (end != '' && start != '' && end < start) {
             Popup.alert('End date must be after start date', 'var(--error)');
             return;
-        } else if (end > Math.round(Date.now() / 1000) || start > Math.round(Date.now() / 1000)) {
+        } else if (end > Math.round(Date.now()) || start > Math.round(Date.now())) {
             Popup.alert('Start and end date must be before today', 'var(--error)');
             return;
         }
@@ -272,13 +267,11 @@ document.getElementById('show-filter').onclick = async () => {
 };
 
 const res = await GET(
-    `/businesses/${getBusinessId()}/attendance/statuscounts?tag=&role=&start=&end=${Math.round(
-        Date.now() / 1000,
-    )}`,
+    `/businesses/${getBusinessId()}/attendance/statuscounts?tag=&role=&start=&end=${Date.now()}`,
 );
 const memberAttArr = await res.json();
 const numRes = await GET(
-    `/businesses/${getBusinessId()}/events/count?tag=&start=&end=${Math.round(Date.now() / 1000)}`,
+    `/businesses/${getBusinessId()}/events/count?tag=&start=&end=${Date.now()}`,
 );
 const numPastEvents = (await numRes.json())['total_count'];
 runMemberStatsTable(memberAttArr, numPastEvents);
diff --git a/public/util/selectors.js b/public/util/selectors.js
index eb84aa0..c6ace05 100644
--- a/public/util/selectors.js
+++ b/public/util/selectors.js
@@ -62,8 +62,8 @@ export async function initEventSelector(id, getBusinessId, onselect, onupdate) {
         const events = await res.json();
         const eventNames = new Set();
         const options = events.map(event => {
-            const startDate = new Date(event.starttimestamp * 1000);
-            const endDate = new Date(event.endtimestamp * 1000);
+            const startDate = new Date(+event.starttimestamp);
+            const endDate = new Date(+event.endtimestamp);
             eventNames.add(event.name);
             const option = document.createElement('option');
             option.value = event.name + ' (' + event.id + ')';
diff --git a/server/Attendance.js b/server/Attendance.js
index 459cc3f..29c0ebe 100644
--- a/server/Attendance.js
+++ b/server/Attendance.js
@@ -53,7 +53,7 @@ router.post('/businesses/:businessId/events/:eventId/attendance', async (request
 
     await db().run(
         ...SQL`INSERT INTO Records (event_id, business_id, user_id, timestamp, status) 
-        VALUES (${eventId}, ${businessId}, ${userId}, ${Math.round(Date.now() / 1000)}, ${status})`,
+        VALUES (${eventId}, ${businessId}, ${userId}, ${Date.now()}, ${status})`,
     );
     response.sendStatus(200);
 });
@@ -80,7 +80,7 @@ router.patch('/businesses/:businessId/events/:eventId/attendance', async (reques
     for (const id of ids.split(',')) {
         await db().run(
             ...SQL`INSERT INTO Records(status, business_id, event_id, user_id, timestamp) 
-            VALUES (${status}, ${businessId}, ${eventId}, ${id}, ${Math.round(Date.now() / 1000)})`,
+            VALUES (${status}, ${businessId}, ${eventId}, ${id}, ${Date.now()})`,
         );
     }
     response.sendStatus(200);
@@ -111,16 +111,14 @@ router.put(
             response.status(400).send('Attendance already recorded');
             return;
         }
-        if (existingRecord && parseInt(existingRecord.endtimestamp) * 1000 < Date.now()) {
+        if (existingRecord && parseInt(existingRecord.endtimestamp) < Date.now()) {
             response.status(400).send('Can only alter attendance for future events');
             return;
         }
 
         await db().run(
             ...SQL`INSERT INTO Records(status, business_id, event_id, user_id, timestamp) 
-            VALUES ('ABSENT(self-marked)', ${businessId}, ${eventId}, ${uid}, ${Math.round(
-                Date.now() / 1000,
-            )})`,
+            VALUES ('ABSENT(self-marked)', ${businessId}, ${eventId}, ${uid}, ${Date.now()})`,
         );
 
         response.sendStatus(200);
@@ -263,7 +261,7 @@ router.post('/businesses/:businessId/events/:eventId/attendance/me', async (requ
 
     await db().run(
         ...SQL`INSERT INTO Records (event_id, business_id, user_id, timestamp, status) 
-        VALUES (${eventId}, ${businessId}, ${uid}, ${Math.round(Date.now() / 1000)}, ${status})`,
+        VALUES (${eventId}, ${businessId}, ${uid}, ${Date.now()}, ${status})`,
     );
     response.sendStatus(200);
 });
diff --git a/server/Event.js b/server/Event.js
index aaa09a6..ec20f68 100644
--- a/server/Event.js
+++ b/server/Event.js
@@ -151,8 +151,8 @@ function createEventSequence(
         db().run(
             ...SQL`INSERT INTO Events (business_id, name, description, starttimestamp, endtimestamp, repeat_id, tag) 
             VALUES (${businessId}, ${name}, ${description}, ${
-                (current.getTime() + timezoneOffsetMS) / 1000
-            }, ${(currentEndDate.getTime() + timezoneOffsetMS) / 1000}, ${repeatId}, ${tag})`,
+                current.getTime() + timezoneOffsetMS
+            }, ${currentEndDate.getTime() + timezoneOffsetMS}, ${repeatId}, ${tag})`,
         );
         if (frequency === 'daily') current.setDate(current.getDate() + interval);
         else if (frequency === 'weekly') current.setDate(current.getDate() + 7 * interval);
@@ -182,9 +182,9 @@ router.post('/businesses/:businessId/events/recurring', async function (request,
     const name = request.query.name;
     const description = request.query.description;
     const timezoneOffsetMS =
-        parseInt(request.query.timezoneOffsetMS) - new Date().getTimezoneOffset() * 60 * 1000; // actual offset includes server offset
-    const startDate = new Date(parseInt(request.query.starttimestamp) * 1000 - timezoneOffsetMS);
-    const endDate = new Date(parseInt(request.query.endtimestamp) * 1000 - timezoneOffsetMS);
+        parseInt(request.query.timezoneOffsetMS) - new Date().getTimezoneOffset() * 60_000; // actual offset includes server offset
+    const startDate = new Date(request.query.starttimestamp - timezoneOffsetMS);
+    const endDate = new Date(request.query.endtimestamp - timezoneOffsetMS);
     const frequency = request.query.frequency;
     const interval = parseInt(request.query.interval);
     const daysoftheweek = request.query.daysoftheweek;