diff --git a/x-pack/plugins/uptime/server/lib/requests/get_network_events.test.ts b/x-pack/plugins/uptime/server/lib/requests/get_network_events.test.ts
index 2d590e80ca42..e1c62f346951 100644
--- a/x-pack/plugins/uptime/server/lib/requests/get_network_events.test.ts
+++ b/x-pack/plugins/uptime/server/lib/requests/get_network_events.test.ts
@@ -5,9 +5,19 @@
  */
 
 import { getUptimeESMockClient } from './helper';
-import { getNetworkEvents } from './get_network_events';
+import { getNetworkEvents, secondsToMillis } from './get_network_events';
 
 describe('getNetworkEvents', () => {
+  describe('secondsToMillis conversion', () => {
+    it('returns -1 for -1 value', () => {
+      expect(secondsToMillis(-1)).toBe(-1);
+    });
+
+    it('returns a value of seconds as milliseconds', () => {
+      expect(secondsToMillis(10)).toBe(10_000);
+    });
+  });
+
   let mockHits: any;
 
   beforeEach(() => {
diff --git a/x-pack/plugins/uptime/server/lib/requests/get_network_events.ts b/x-pack/plugins/uptime/server/lib/requests/get_network_events.ts
index ec1fffd62350..6b1bca8f2d7b 100644
--- a/x-pack/plugins/uptime/server/lib/requests/get_network_events.ts
+++ b/x-pack/plugins/uptime/server/lib/requests/get_network_events.ts
@@ -12,6 +12,10 @@ interface GetNetworkEventsParams {
   stepIndex: string;
 }
 
+export const secondsToMillis = (seconds: number) =>
+  // -1 is a special case where a value was unavailable
+  seconds === -1 ? -1 : seconds * 1000;
+
 export const getNetworkEvents: UMElasticsearchQueryFn<
   GetNetworkEventsParams,
   { events: NetworkEvent[]; total: number }
@@ -35,17 +39,15 @@ export const getNetworkEvents: UMElasticsearchQueryFn<
 
   const { body: result } = await uptimeEsClient.search({ body: params });
 
-  const microToMillis = (micro: number): number => (micro === -1 ? -1 : micro * 1000);
-
   return {
     total: result.hits.total.value,
     events: result.hits.hits.map<NetworkEvent>((event: any) => {
-      const requestSentTime = microToMillis(event._source.synthetics.payload.request_sent_time);
-      const loadEndTime = microToMillis(event._source.synthetics.payload.load_end_time);
+      const requestSentTime = secondsToMillis(event._source.synthetics.payload.request_sent_time);
+      const loadEndTime = secondsToMillis(event._source.synthetics.payload.load_end_time);
       const requestStartTime =
         event._source.synthetics.payload.response &&
         event._source.synthetics.payload.response.timing
-          ? microToMillis(event._source.synthetics.payload.response.timing.request_time)
+          ? secondsToMillis(event._source.synthetics.payload.response.timing.request_time)
           : undefined;
 
       return {