diff --git a/CHANGELOG.md b/CHANGELOG.md
index 22ce796f14..2a17af1e32 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,6 +21,7 @@ For experimental package changes, see the [experimental CHANGELOG](experimental/
 
 ### :bug: (Bug Fix)
 
+* fix(api-logs): allow for TimeInput type for LogRecord timestamps [#4345](https://github.com/open-telemetry/opentelemetry-js/pull/4345)
 * fix(sdk-trace-web): only access location if it is defined [#4063](https://github.com/open-telemetry/opentelemetry-js/pull/4063)
 * fix(sdk-trace-base): processor onStart called with a span having empty attributes
 
diff --git a/experimental/packages/api-logs/src/types/LogRecord.ts b/experimental/packages/api-logs/src/types/LogRecord.ts
index 59718aa30b..69dd14f7cb 100644
--- a/experimental/packages/api-logs/src/types/LogRecord.ts
+++ b/experimental/packages/api-logs/src/types/LogRecord.ts
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import { AttributeValue, Context } from '@opentelemetry/api';
+import { AttributeValue, Context, TimeInput } from '@opentelemetry/api';
 
 export type LogAttributeValue = AttributeValue | LogAttributes;
 export interface LogAttributes {
@@ -53,12 +53,12 @@ export interface LogRecord {
   /**
    * The time when the log record occurred as UNIX Epoch time in nanoseconds.
    */
-  timestamp?: number;
+  timestamp?: TimeInput;
 
   /**
    * Time when the event was observed by the collection system.
    */
-  observedTimestamp?: number;
+  observedTimestamp?: TimeInput;
 
   /**
    * Numerical value of the severity.