diff --git a/test/common/libs/shops.test.js b/test/common/libs/shops.test.js
index e7d919fda9..c936884b2d 100644
--- a/test/common/libs/shops.test.js
+++ b/test/common/libs/shops.test.js
@@ -47,9 +47,9 @@ describe('shops', () => {
 
     describe('premium hatching potions', () => {
       it('contains current scheduled premium hatching potions', async () => {
-        clock = sinon.useFakeTimers(new Date('2024-04-01'));
+        clock = sinon.useFakeTimers(new Date('2024-04-01T09:00:00.000Z'));
         const potions = shared.shops.getMarketCategories(user).find(x => x.identifier === 'premiumHatchingPotions');
-        expect(potions.items.length).to.eql(2);
+        expect(potions.items.length).to.eql(3);
       });
 
       it('does not contain past scheduled premium hatching potions', async () => {
@@ -73,9 +73,9 @@ describe('shops', () => {
       });
 
       it('does not contain locked quest premium hatching potions', async () => {
-        clock = sinon.useFakeTimers(new Date('2024-04-01'));
+        clock = sinon.useFakeTimers(new Date('2024-04-01T09:00:00.000Z'));
         const potions = shared.shops.getMarketCategories(user).find(x => x.identifier === 'premiumHatchingPotions');
-        expect(potions.items.length).to.eql(2);
+        expect(potions.items.length).to.eql(3);
         expect(potions.items.filter(x => x.key === 'Bronze' || x.key === 'BlackPearl').length).to.eql(0);
       });
 
diff --git a/test/content/schedule.test.js b/test/content/schedule.test.js
index 5731a81cdd..6e8c172a98 100644
--- a/test/content/schedule.test.js
+++ b/test/content/schedule.test.js
@@ -18,12 +18,19 @@ function validateMatcher (matcher, checkedDate) {
 
 describe('Content Schedule', () => {
   let switchoverTime;
+  let clock;
 
   beforeEach(() => {
     switchoverTime = nconf.get('CONTENT_SWITCHOVER_TIME_OFFSET') || 0;
     clearCachedMatchers();
   });
 
+  afterEach(() => {
+    if (clock) {
+      clock.restore();
+    }
+  });
+
   it('assembles scheduled items on january 15th', () => {
     const date = new Date('2024-01-15');
     const matchers = getAllScheduleMatchingGroups(date);
@@ -105,8 +112,14 @@ describe('Content Schedule', () => {
     expect(matchers.backgrounds.end).to.eql(moment.utc(`2024-05-07T${String(switchoverTime).padStart(2, '0')}:00:00.000Z`).toDate());
   });
 
-  it('sets the end date if its on the release day', () => {
-    const date = new Date('2024-05-07T07:00:00.000Z');
+  it('sets the end date if its on the release day before switchover', () => {
+    const date = new Date('2024-05-07T07:00:00.000+00:00');
+    const matchers = getAllScheduleMatchingGroups(date);
+    expect(matchers.backgrounds.end).to.eql(moment.utc(`2024-05-07T${String(switchoverTime).padStart(2, '0')}:00:00.000Z`).toDate());
+  });
+
+  it('sets the end date if its on the release day after switchover', () => {
+    const date = new Date('2024-05-07T09:00:00.000+00:00');
     const matchers = getAllScheduleMatchingGroups(date);
     expect(matchers.backgrounds.end).to.eql(moment.utc(`2024-06-07T${String(switchoverTime).padStart(2, '0')}:00:00.000Z`).toDate());
   });
@@ -129,6 +142,42 @@ describe('Content Schedule', () => {
     expect(matchers.seasonalGear.end).to.eql(moment.utc(`2025-03-21T${String(switchoverTime).padStart(2, '0')}:00:00.000Z`).toDate());
   });
 
+  it('uses correct date for first hours of the month', () => {
+    // if the date is checked before CONTENT_SWITCHOVER_TIME_OFFSET,
+    // it should be considered the previous month
+    const date = new Date('2024-05-01T02:00:00.000Z');
+    const matchers = getAllScheduleMatchingGroups(date);
+    expect(matchers.petQuests.items).to.contain('snake');
+    expect(matchers.petQuests.items).to.not.contain('horse');
+    expect(matchers.timeTravelers.match('202304'), '202304').to.be.true;
+    expect(matchers.timeTravelers.match('202404'), '202404').to.be.false;
+    expect(matchers.timeTravelers.match('202305'), '202305').to.be.false;
+  });
+
+  it('uses correct date after switchover time', () => {
+    // if the date is checked after CONTENT_SWITCHOVER_TIME_OFFSET,
+    // it should be considered the current
+    const date = new Date('2024-05-01T09:00:00.000Z');
+    const matchers = getAllScheduleMatchingGroups(date);
+    expect(matchers.petQuests.items).to.contain('snake');
+    expect(matchers.petQuests.items).to.not.contain('horse');
+    expect(matchers.timeTravelers.match('202304'), '202304').to.be.false;
+    expect(matchers.timeTravelers.match('202305'), '202305').to.be.true;
+    expect(matchers.timeTravelers.match('202405'), '202405').to.be.false;
+  });
+
+  it('uses UTC timezone', () => {
+    // if the date is checked after CONTENT_SWITCHOVER_TIME_OFFSET,
+    // it should be considered the current
+    clock = sinon.useFakeTimers(new Date('2024-05-01T05:00:00.000-04:00'));
+    const matchers = getAllScheduleMatchingGroups();
+    expect(matchers.petQuests.items).to.contain('snake');
+    expect(matchers.petQuests.items).to.not.contain('horse');
+    expect(matchers.timeTravelers.match('202304'), '202304').to.be.false;
+    expect(matchers.timeTravelers.match('202305'), '202305').to.be.true;
+    expect(matchers.timeTravelers.match('202405'), '202405').to.be.false;
+  });
+
   it('contains content for repeating events', () => {
     const date = new Date('2024-04-15');
     const matchers = getAllScheduleMatchingGroups(date);
diff --git a/test/content/time-travelers.test.js b/test/content/time-travelers.test.js
index 83dc40dd38..9b4e132537 100644
--- a/test/content/time-travelers.test.js
+++ b/test/content/time-travelers.test.js
@@ -45,7 +45,7 @@ describe('time-travelers store', () => {
 
   describe('on may 1st', () => {
     beforeEach(() => {
-      date = new Date('2024-05-01');
+      date = new Date('2024-05-01T09:00:00.000Z');
     });
     it('returns the correct gear', () => {
       const items = timeTravelers.timeTravelerStore(user, date);
diff --git a/website/common/script/content/constants/schedule.js b/website/common/script/content/constants/schedule.js
index 2fada3f5bc..e1cffb47fc 100644
--- a/website/common/script/content/constants/schedule.js
+++ b/website/common/script/content/constants/schedule.js
@@ -809,7 +809,9 @@ function getMonth (date) {
   if (date === undefined) {
     return 0;
   }
-  return date instanceof moment ? date.month() : date.getMonth();
+  const checkDate = new Date(date.getTime());
+  checkDate.setHours(checkDate.getHours() - SWITCHOVER_TIME);
+  return checkDate.getMonth();
 }
 
 function getGalaIndex (date) {
@@ -892,7 +894,7 @@ function makeEndDate (checkedDate, matcher) {
       end.year(checkedDate.getFullYear() + 1);
     }
     end.month(matcher.endMonth);
-  } else if (end.date() <= checkedDate.getDate()) {
+  } else if (end.valueOf() <= checkedDate.getTime()) {
     end = moment(end).add(1, 'months');
   }
   return end.toDate();
@@ -904,7 +906,7 @@ export function clearCachedMatchers () {
 }
 
 export function getAllScheduleMatchingGroups (date) {
-  const checkedDate = date || new Date();
+  const checkedDate = date || moment.utc().toDate();
   if (cacheDate !== null && (getDay(checkedDate) !== getDay(cacheDate)
     || getMonth(checkedDate) !== getMonth(cacheDate))) {
     // Clear cached matchers, since they are old
@@ -914,9 +916,14 @@ export function getAllScheduleMatchingGroups (date) {
     // No matchers exist, make new ones
     cacheDate = new Date();
     cachedScheduleMatchers = {};
+    // subtract switchover time for the matcher classes, but
+    // NOT to decide which matchers to assemble.
+    // assembly uses getDate and getMonth which already adjust for switchover time
+    const adjustedDate = new Date(checkedDate.getTime());
+    adjustedDate.setHours(adjustedDate.getHours() - SWITCHOVER_TIME);
     assembleScheduledMatchers(checkedDate).forEach(matcher => {
       if (!cachedScheduleMatchers[matcher.type]) {
-        cachedScheduleMatchers[matcher.type] = makeMatcherClass(checkedDate);
+        cachedScheduleMatchers[matcher.type] = makeMatcherClass(adjustedDate);
       }
       cachedScheduleMatchers[matcher.type].end = makeEndDate(checkedDate, matcher);
       if (matcher.matcher instanceof Function) {