diff --git a/client/.eslintrc.js b/client/.eslintrc.js
index bb0fd06ac..ecb515818 100644
--- a/client/.eslintrc.js
+++ b/client/.eslintrc.js
@@ -11,7 +11,8 @@ module.exports = {
     'backbone/model-defaults': 0, // widely abused issue - so unlikely to be addressed without considerable effort
     'backbone/collection-model': 0, // ditto
     'backbone/defaults-on-top': 0, // ditto
-    'backbone/initialize-on-top': 0 // ditto
+    'backbone/initialize-on-top': 0, // ditto
+    'backbone/no-silent': 0
     },
     env: {
     es6: true,
@@ -21,4 +22,4 @@ module.exports = {
         "ecmaVersion": 11,
         "sourceType": "module"
     }
-}
\ No newline at end of file
+}
diff --git a/client/package-lock.json b/client/package-lock.json
index 3c41082c6..c8ba8a758 100644
--- a/client/package-lock.json
+++ b/client/package-lock.json
@@ -35,7 +35,6 @@
         "jquery.flot": "^0.8.3",
         "jquery.flot.tooltip": "^0.9.0",
         "lodash-es": "^4.17.21",
-        "luxon": "^1.25.0",
         "markdown": "^0.5.0",
         "plotly.js": "^1.52.2",
         "portal-vue": "2.1.7",
@@ -11722,14 +11721,6 @@
         "yallist": "^3.0.2"
       }
     },
-    "node_modules/luxon": {
-      "version": "1.28.1",
-      "resolved": "https://registry.npmjs.org/luxon/-/luxon-1.28.1.tgz",
-      "integrity": "sha512-gYHAa180mKrNIUJCbwpmD0aTu9kV0dREDrwNnuyFAsO1Wt0EVYSZelPnJlbj9HplzXX/YWXHFTL45kvZ53M0pw==",
-      "engines": {
-        "node": "*"
-      }
-    },
     "node_modules/make-dir": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-3.1.0.tgz",
diff --git a/client/package.json b/client/package.json
index 4808d17de..6cdd6dbe2 100644
--- a/client/package.json
+++ b/client/package.json
@@ -83,7 +83,6 @@
     "jquery.flot": "^0.8.3",
     "jquery.flot.tooltip": "^0.9.0",
     "lodash-es": "^4.17.21",
-    "luxon": "^1.25.0",
     "markdown": "^0.5.0",
     "plotly.js": "^1.52.2",
     "portal-vue": "2.1.7",
diff --git a/client/src/js/models/visit.js b/client/src/js/models/visit.js
index f62f49407..7eac421ec 100644
--- a/client/src/js/models/visit.js
+++ b/client/src/js/models/visit.js
@@ -1,11 +1,10 @@
-define(['backbone', 'backbone-validation', 'luxon'], function(Backbone, BackBoneValidation, luxon) {
+define(['backbone', 'backbone-validation'], function(Backbone, BackBoneValidation) {
   var Visit = Backbone.Model.extend({
     idAttribute: 'VISIT',
     urlRoot: '/proposal/visits',
       
     initialize: function(attributes, options) {
       this.on('change', this.addDate, this)
-      this.dateTimeZone = window.app.options.get('timezone')
       this.addDate()
     },
 
@@ -47,17 +46,14 @@ define(['backbone', 'backbone-validation', 'luxon'], function(Backbone, BackBone
             pattern: 'number',
         },
     },
-      
-    addDate: function() {
-        var { DateTime } = luxon
-        
-        this.set('ENISO', DateTime.fromISO(this.get('ENISO'), { zone: this.dateTimeZone }))
-        this.set('STISO', DateTime.fromISO(this.get('STISO'), { zone: this.dateTimeZone }))
-        this.set('LEN', Number(this.get('ENISO').diff(this.get('STISO'))/(3600*1000)).toFixed(2))
-        this.set('VISITDETAIL', this.get('VISIT')+' ('+this.get('BL')+': '+this.get('ST')+')')
-    },
 
-    dateTimeZone: 'Europe/London'
+    addDate: function() {
+        const enDate = new Date(this.get('ENISO'))
+        const stDate = new Date(this.get('STISO'))
+        const diffInHours = (enDate - stDate) / (3600 * 1000)
+        this.set('LEN', Number(diffInHours).toFixed(2))
+        this.set('VISITDETAIL', this.get('VISIT') + ' (' + this.get('BL') + ': ' + this.get('ST') + ')')
+    }
       
   })
 
diff --git a/client/src/js/modules/calendar/views/calendar-view.vue b/client/src/js/modules/calendar/views/calendar-view.vue
index 38dd85181..cdb864bea 100644
--- a/client/src/js/modules/calendar/views/calendar-view.vue
+++ b/client/src/js/modules/calendar/views/calendar-view.vue
@@ -157,7 +157,6 @@ import Visits from 'collections/visits'
 import Beamlines from 'collections/bls'
 import FilterPills from 'app/components/filter-pills.vue'
 import CalendarDayEvents from 'modules/calendar/views/components/calendar-day-events.vue'
-import { DateTime } from 'luxon'
 
 export default {
   name: 'CalendarView',
@@ -220,9 +219,9 @@ export default {
   },
   mounted() {
     const dateTime = this.todayDate
-    this.currentMonth = dateTime.month - 1
-    this.currentDay = dateTime.day
-    this.currentYear = dateTime.year
+    this.currentMonth = dateTime.getMonth()
+    this.currentDay = dateTime.getDate()
+    this.currentYear = dateTime.getFullYear()
     this.fetchBeamlinesByType()
     this.fetchVisitsCalendar()
   },
@@ -330,19 +329,16 @@ export default {
       }, {})
     },
     isToday(date) {
-      const { month, day, year } = this.todayDate
-      return date === day && month - 1 === this.currentMonth && year === this.currentYear
+      const today = this.todayDate
+      return (
+        date === today.getDate() &&
+        this.currentMonth === today.getMonth() &&
+        this.currentYear === today.getFullYear()
+      )
     },
     isPastDate(date) {
-      const dateItem = DateTime.fromObject({
-        year: this.currentYear,
-        month: this.currentMonth + 1,
-        day: date,
-        zone: this.timezone
-      })
-
+      const dateItem = new Date(this.currentYear, this.currentMonth, date);
       return dateItem < this.todayDate
-
     },
     onHover(ref, addHover) {
       const hoveredRef = this.$refs[ref][0].$el
@@ -409,7 +405,9 @@ export default {
       return this.appOption['timezone']
     },
     todayDate() {
-      return DateTime.local().setZone(this.timezone)
+      const d = new Date()
+      d.setHours(0, 0, 0, 0)
+      return d
     },
     currentSelectedMonth() {
       return this.months[this.currentMonth]
@@ -439,20 +437,12 @@ export default {
       return this.currentYear + 1
     },
     daysInMonth() {
-      return DateTime.fromObject({
-        year: this.currentYear,
-        month: this.currentMonth + 1,
-        day: 1,
-        zone: this.timezone
-      }).daysInMonth
+      return new Date(this.currentYear, this.currentMonth + 1, 0).getDate()
     },
     startDayOfMonth() {
-      return DateTime.fromObject({
-        year: this.currentYear,
-        month: this.currentMonth + 1,
-        day: 1,
-        zone: this.timezone
-      }).weekday - 1
+      const dateItem = new Date(this.currentYear, this.currentMonth, 1)
+      const day = dateItem.getDay()
+      return (day === 0) ? 6 : day - 1
     },
     sortedVisitsByDay() {
       return Array(this.daysInMonth).fill('').reduce((acc, curr, index) => {
diff --git a/client/src/js/modules/samples/controller.js b/client/src/js/modules/samples/controller.js
index 0171bf067..b14f690dc 100644
--- a/client/src/js/modules/samples/controller.js
+++ b/client/src/js/modules/samples/controller.js
@@ -18,7 +18,7 @@ define(['marionette',
   GetView,
   Sample, Samples, 
   Protein, Proteins,
-  Ligand, Ligands
+  Ligand, Ligands,
   Crystal, Crystals,
   Instance,
   ProposalLookup) {