diff --git a/smart-frontend/app/src/api/adh/actions.ts b/smart-frontend/app/src/api/adh/actions.ts
index e1ba904520..75a4f1f01a 100644
--- a/smart-frontend/app/src/api/adh/actions.ts
+++ b/smart-frontend/app/src/api/adh/actions.ts
@@ -18,7 +18,7 @@
 import type { AdhAction, AdhActionsFilter } from '@models/adh';
 import type { PaginationParams, SortParams } from '@models/table';
 import type { PaginateCollection } from '@models/collection';
-import { prepareDateRange, prepareQueryParams } from '@utils/requestUtils';
+import { prepareNamedDateRange, prepareQueryParams } from '@utils/requestUtils';
 import { httpClient } from '@api/httpClient';
 import qs from 'qs';
 
@@ -28,14 +28,11 @@ export class AdhActionsApi {
     sortParams: SortParams,
     paginationParams: PaginationParams,
   ): Promise<PaginateCollection<AdhAction>> {
-    const { from: submissionTimeFrom, to: submissionTimeTo } = prepareDateRange(submissionTime);
-    const { from: completionTimeFrom, to: completionTimeTo } = prepareDateRange(completionTime);
-
     const queryParams = prepareQueryParams(
       {
         ...filter,
-        submissionTime: { submissionTimeFrom, submissionTimeTo },
-        completionTime: { completionTimeFrom, completionTimeTo },
+        ...prepareNamedDateRange(submissionTime, 'submissionTime'),
+        ...prepareNamedDateRange(completionTime, 'completionTime'),
       },
       sortParams,
       paginationParams,
diff --git a/smart-frontend/app/src/api/adh/auditEvents.ts b/smart-frontend/app/src/api/adh/auditEvents.ts
index e1c4eb74cd..501e7261f1 100644
--- a/smart-frontend/app/src/api/adh/auditEvents.ts
+++ b/smart-frontend/app/src/api/adh/auditEvents.ts
@@ -17,7 +17,7 @@
  */
 import type { PaginationParams, SortParams } from '@models/table';
 import type { PaginateCollection } from '@models/collection';
-import { prepareDateRange, prepareQueryParams } from '@utils/requestUtils';
+import { prepareNamedDateRange, prepareQueryParams } from '@utils/requestUtils';
 import { httpClient } from '@api/httpClient';
 import qs from 'qs';
 import type { AdhAuditEvent, AdhAuditEventsFilter } from '@models/adh/auditEvent';
@@ -28,12 +28,10 @@ export class AdhAuditEventsApi {
     sortParams: SortParams,
     paginationParams: PaginationParams,
   ): Promise<PaginateCollection<AdhAuditEvent>> {
-    const { from: eventTimeTimeFrom, to: eventTimeTimeTo } = prepareDateRange(eventTime);
-
     const queryParams = prepareQueryParams(
       {
         ...filter,
-        eventTimeTime: { eventTimeTimeFrom, eventTimeTimeTo },
+        ...prepareNamedDateRange(eventTime, 'eventTime'),
       },
       sortParams,
       paginationParams,
diff --git a/smart-frontend/app/src/api/adh/clusterInfo.ts b/smart-frontend/app/src/api/adh/clusterInfo.ts
index a05f65f6ef..b23771b48a 100644
--- a/smart-frontend/app/src/api/adh/clusterInfo.ts
+++ b/smart-frontend/app/src/api/adh/clusterInfo.ts
@@ -19,7 +19,7 @@ import type { PaginateCollection } from '@models/collection';
 import { httpClient } from '@api/httpClient';
 import type { AdhClusterNodesFilter, AdhClusterNode } from '@models/adh';
 import type { PaginationParams, SortParams } from '@models/table';
-import { prepareDateRange, prepareQueryParams } from '@utils/requestUtils';
+import { prepareNamedDateRange, prepareQueryParams } from '@utils/requestUtils';
 import qs from 'qs';
 
 export class AdhClusterInfoApi {
@@ -28,12 +28,10 @@ export class AdhClusterInfoApi {
     sortParams?: SortParams,
     paginationParams?: PaginationParams,
   ): Promise<PaginateCollection<AdhClusterNode>> {
-    const { from: registrationTimeFrom, to: registrationTimeTo } = prepareDateRange(registrationTime);
-
     const queryParams = prepareQueryParams(
       {
         ...filter,
-        registrationTime: { registrationTimeFrom, registrationTimeTo },
+        ...prepareNamedDateRange(registrationTime, 'registrationTime'),
       },
       sortParams,
       paginationParams,
diff --git a/smart-frontend/app/src/api/adh/files.ts b/smart-frontend/app/src/api/adh/files.ts
index bfd57b56de..b7777439e8 100644
--- a/smart-frontend/app/src/api/adh/files.ts
+++ b/smart-frontend/app/src/api/adh/files.ts
@@ -18,7 +18,7 @@
 import type { AdhFileInfo, AdhFileInfoFilter, AdhCachedFileInfo, AdhCachedFileInfoFilter } from '@models/adh';
 import type { PaginationParams, SortParams } from '@models/table';
 import type { PaginateCollection } from '@models/collection';
-import { prepareDateRange, prepareQueryParams } from '@utils/requestUtils';
+import { prepareNamedDateRange, prepareQueryParams } from '@utils/requestUtils';
 import { httpClient } from '@api/httpClient';
 import qs from 'qs';
 
@@ -28,12 +28,10 @@ export class AdhFilesApi {
     sortParams: SortParams,
     paginationParams: PaginationParams,
   ): Promise<PaginateCollection<AdhFileInfo>> {
-    const { from: lastAccessedTimeFrom, to: lastAccessedTimeTo } = prepareDateRange(lastAccessedTime);
-
     const queryParams = prepareQueryParams(
       {
         ...filter,
-        lastAccessedTime: { lastAccessedTimeFrom, lastAccessedTimeTo },
+        ...prepareNamedDateRange(lastAccessedTime, 'lastAccessedTime'),
       },
       sortParams,
       paginationParams,
@@ -50,14 +48,11 @@ export class AdhFilesApi {
     sortParams: SortParams,
     paginationParams: PaginationParams,
   ): Promise<PaginateCollection<AdhCachedFileInfo>> {
-    const { from: lastAccessedTimeFrom, to: lastAccessedTimeTo } = prepareDateRange(lastAccessedTime);
-    const { from: cachedTimeFrom, to: cachedTimeTo } = prepareDateRange(cachedTime);
-
     const queryParams = prepareQueryParams(
       {
         ...filter,
-        lastAccessedTime: { lastAccessedTimeFrom, lastAccessedTimeTo },
-        cachedTime: { cachedTimeFrom, cachedTimeTo },
+        ...prepareNamedDateRange(lastAccessedTime, 'lastAccessedTime'),
+        ...prepareNamedDateRange(cachedTime, 'cachedTime'),
       },
       sortParams,
       paginationParams,
diff --git a/smart-frontend/app/src/api/adh/rules.ts b/smart-frontend/app/src/api/adh/rules.ts
index 5517c7db2a..7428929ec9 100644
--- a/smart-frontend/app/src/api/adh/rules.ts
+++ b/smart-frontend/app/src/api/adh/rules.ts
@@ -18,7 +18,7 @@
 import type { AdhRule, AdhRuleFilter } from '@models/adh';
 import type { PaginationParams, SortParams } from '@models/table';
 import type { PaginateCollection } from '@models/collection';
-import { prepareDateRange, prepareQueryParams } from '@utils/requestUtils';
+import { prepareNamedDateRange, prepareQueryParams } from '@utils/requestUtils';
 import { httpClient } from '@api/httpClient';
 import qs from 'qs';
 
@@ -28,14 +28,11 @@ export class AdhRulesApi {
     sortParams?: SortParams,
     paginationParams?: PaginationParams,
   ): Promise<PaginateCollection<AdhRule>> {
-    const { from: submissionTimeFrom, to: submissionTimeTo } = prepareDateRange(submissionTime);
-    const { from: lastActivationTimeFrom, to: lastActivationTimeTo } = prepareDateRange(lastActivationTime);
-
     const queryParams = prepareQueryParams(
       {
         ...filter,
-        submissionTime: { submissionTimeFrom, submissionTimeTo },
-        lastActivationTime: { lastActivationTimeFrom, lastActivationTimeTo },
+        ...prepareNamedDateRange(submissionTime, 'submissionTime'),
+        ...prepareNamedDateRange(lastActivationTime, 'lastActivationTime'),
       },
       sortParams,
       paginationParams,
diff --git a/smart-frontend/app/src/utils/date/dateConvertUtils.ts b/smart-frontend/app/src/utils/date/dateConvertUtils.ts
index e55027d38f..a05aaf6fb2 100644
--- a/smart-frontend/app/src/utils/date/dateConvertUtils.ts
+++ b/smart-frontend/app/src/utils/date/dateConvertUtils.ts
@@ -62,14 +62,14 @@ export const millisecondsToDuration = (milliseconds: number) => {
   return dateDuration(curDate, new Date(curDate.getTime() + milliseconds));
 };
 
-export const secondsToDate = (seconds: number): Date => {
-  return new Date(Math.floor(seconds * 1000));
+export const millisecondsToDate = (milliseconds: number): Date => {
+  return new Date(milliseconds);
 };
 
-export const dateToSeconds = (date: Date): number => {
+export const dateToMilliseconds = (date: Date): number => {
   if (date === null) return 0;
-  return Math.floor(date.getTime() / 1000);
+  return date.getTime();
 };
 
-export const deserializeDate = (seconds: SerializedDate): Date => secondsToDate(seconds);
-export const serializeDate = (date: Date): SerializedDate => dateToSeconds(date);
+export const deserializeDate = (milliseconds: SerializedDate): Date => millisecondsToDate(milliseconds);
+export const serializeDate = (date: Date): SerializedDate => dateToMilliseconds(date);
diff --git a/smart-frontend/app/src/utils/requestUtils.ts b/smart-frontend/app/src/utils/requestUtils.ts
index bdd8ec4c18..9831a7d553 100644
--- a/smart-frontend/app/src/utils/requestUtils.ts
+++ b/smart-frontend/app/src/utils/requestUtils.ts
@@ -104,3 +104,11 @@ export const prepareDateRange = (
     to: utcDateToLocal(to),
   }) as StaticDateRange<SerializedDate>;
 };
+
+export const prepareNamedDateRange = (dateRange: DateRange<SerializedDate> | undefined, keyName: string) => {
+  const dateObject = prepareDateRange(dateRange);
+  return {
+    [`${keyName}From`]: dateObject.from,
+    [`${keyName}To`]: dateObject.to,
+  };
+};