diff --git a/controllers/doorLock.js b/controllers/doorLock.js
index 6e9626f..c34248a 100644
--- a/controllers/doorLock.js
+++ b/controllers/doorLock.js
@@ -27,7 +27,13 @@ const uploadDoorLockData = (req, res) => {
                 parserResults.forEach((parserResult) => {
                     parsedData.push(...parserResult.parsedData);
                     parserErrors.push(...parserResult.errors);
-                    unknownMembers.push(...parserResult.unknownMembers);
+
+                    parserResult.unknownMembers.forEach((newUnknownMember) => {
+                        // Check if member is already labeled as unknown in different file
+                        if (!unknownMembers.find((unknownMember) => unknownMember.details === newUnknownMember.details)){
+                            unknownMembers.push(newUnknownMember);
+                        }
+                    });
                 });
 
                 const asyncWriteJobs = [];
diff --git a/services/doorLock/doorLock.js b/services/doorLock/doorLock.js
index c59c6e7..48b87c2 100644
--- a/services/doorLock/doorLock.js
+++ b/services/doorLock/doorLock.js
@@ -3,10 +3,11 @@
 const db = require('../../models');
 const fs = require('fs');
 const csv = require('csv-parser');
-const moment = require('moment/moment');
+const moment = require('moment-timezone');
 const Op = require('sequelize').Op;
 
 const {
+    UI_TIMEZONE,
     USER_ENTRY_EVENT,
     ENABLE_PASSAGE_MODE,
     DISABLE_PASSAGE_MODE,
@@ -38,7 +39,7 @@ const parseDoorLockDataFile = (file) => {
     return new Promise ((resolve, reject) => {
         const results = [];
         const errors = [];
-        const unknownMembers = [];
+        const unknownMembersToReport = [];
         let isValidFile = true;
 
         const prefetchDataJobs = [getMappingsFromDatabase(), fetchAllMembers()];
@@ -48,6 +49,11 @@ const parseDoorLockDataFile = (file) => {
                 const mappings = result[0];
                 const allMembers = result[1];
 
+                const membersMap = {};
+                const unknownMembersMap = {};
+
+                allMembers.forEach((member) => membersMap[member.name] = member);
+
                 const mappingFromFileName = extractMappingFromFileName(file.name);
                 const mappingObject = checkIfMappingExsists(mappingFromFileName, mappings);
                 if (!mappingObject){
@@ -104,13 +110,15 @@ const parseDoorLockDataFile = (file) => {
                             const secondEntry = results[i+1];
 
                             if (firstEntry && (firstEntry.event === USER_ENTRY_EVENT)){
-                                const memberObject = allMembers.find(member => member.name === firstEntry.name);
+                                const memberObject = membersMap[firstEntry.name];
 
                                 if (!memberObject){
                                     //Check if member is already labeled as unknown
-                                    const unknownMember = unknownMembers.find((member) => member.details === firstEntry.name);
+                                    const unknownMember = unknownMembersMap[firstEntry.name];
+
                                     if (!unknownMember){
-                                        unknownMembers.push({
+                                        unknownMembersMap[firstEntry.name] = firstEntry.name;
+                                        unknownMembersToReport.push({
                                             error: csvParserErrors.UNKNOWN_MEMBER,
                                             details: firstEntry.name,
                                             file: file.name,
@@ -123,7 +131,7 @@ const parseDoorLockDataFile = (file) => {
                                         doorLockEvents.USER_UNLOCKED : doorLockEvents.USER_LOCKED;
 
                                     const dateTimeString = `${firstEntry.date} ${firstEntry.time}`;
-                                    const timestamp = moment.utc(dateTimeString, 'MM/DD/YY HH:mm:ss A').toISOString();
+                                    const timestamp = moment.tz(dateTimeString, 'MM/DD/YY HH:mm:ss A', UI_TIMEZONE).toISOString();
 
                                     //Verify that member is registered in OfficeRnD system
                                     if (memberObject){
@@ -159,7 +167,7 @@ const parseDoorLockDataFile = (file) => {
                         }
                         resolve({
                             parsedData,
-                            unknownMembers,
+                            unknownMembers: unknownMembersToReport,
                             errors
                         });
                     });