diff --git a/.changeset/@graphql-hive_gateway-1343-dependencies.md b/.changeset/@graphql-hive_gateway-1343-dependencies.md
new file mode 100644
index 000000000..8e3bac214
--- /dev/null
+++ b/.changeset/@graphql-hive_gateway-1343-dependencies.md
@@ -0,0 +1,7 @@
+---
+'@graphql-hive/gateway': patch
+---
+
+dependencies updates: 
+
+- Updated dependency [`@opentelemetry/sdk-trace-base@patch:@opentelemetry/sdk-trace-base@patch%3A@opentelemetry/sdk-trace-base@npm%253A2.0.1%23~/.yarn/patches/@opentelemetry-sdk-trace-base-npm-2.0.1-ebe4f8e34e.patch%3A%3Aversion=2.0.1&hash=212481#~/.yarn/patches/@opentelemetry-sdk-trace-base-patch-0b7dbf6a30.patch` ↗︎](https://www.npmjs.com/package/@opentelemetry/sdk-trace-base/v/3.0.0) (from `^2.0.1`, in `dependencies`)
diff --git a/.changeset/@graphql-mesh_plugin-opentelemetry-1343-dependencies.md b/.changeset/@graphql-mesh_plugin-opentelemetry-1343-dependencies.md
new file mode 100644
index 000000000..bf78dab6f
--- /dev/null
+++ b/.changeset/@graphql-mesh_plugin-opentelemetry-1343-dependencies.md
@@ -0,0 +1,7 @@
+---
+'@graphql-mesh/plugin-opentelemetry': patch
+---
+
+dependencies updates: 
+
+- Updated dependency [`@opentelemetry/sdk-trace-base@patch:@opentelemetry/sdk-trace-base@patch%3A@opentelemetry/sdk-trace-base@npm%253A2.0.1%23~/.yarn/patches/@opentelemetry-sdk-trace-base-npm-2.0.1-ebe4f8e34e.patch%3A%3Aversion=2.0.1&hash=212481#~/.yarn/patches/@opentelemetry-sdk-trace-base-patch-0b7dbf6a30.patch` ↗︎](https://www.npmjs.com/package/@opentelemetry/sdk-trace-base/v/3.0.0) (from `^2.0.1`, in `dependencies`)
diff --git a/.changeset/strong-paws-complain.md b/.changeset/strong-paws-complain.md
new file mode 100644
index 000000000..d0dac2db9
--- /dev/null
+++ b/.changeset/strong-paws-complain.md
@@ -0,0 +1,6 @@
+---
+'@graphql-mesh/plugin-opentelemetry': patch
+'@graphql-hive/gateway': patch
+---
+
+Patch the `@opentelemetry/sdk-trace-base` package to fix span start time precision being millisecond instead of nanosecond.
diff --git a/.yarn/patches/@opentelemetry-sdk-trace-base-npm-2.0.1-ebe4f8e34e.patch b/.yarn/patches/@opentelemetry-sdk-trace-base-npm-2.0.1-ebe4f8e34e.patch
new file mode 100644
index 000000000..65aed5508
--- /dev/null
+++ b/.yarn/patches/@opentelemetry-sdk-trace-base-npm-2.0.1-ebe4f8e34e.patch
@@ -0,0 +1,39 @@
+diff --git a/build/esm/Span.js b/build/esm/Span.js
+index 185835fdc5667eddb072891618607ce213bb6625..5554c8bde3f6f44504587a88e115104a01d39ec4 100644
+--- a/build/esm/Span.js
++++ b/build/esm/Span.js
+@@ -66,7 +66,7 @@ export class SpanImpl {
+         this.parentSpanContext = opts.parentSpanContext;
+         this.kind = opts.kind;
+         this.links = opts.links || [];
+-        this.startTime = this._getTime(opts.startTime ?? now);
++        this.startTime = this._getTime(opts.startTime ?? hrTime(this._performanceStartTime + this._performanceOffset));
+         this.resource = opts.resource;
+         this.instrumentationScope = opts.scope;
+         if (opts.attributes != null) {
+diff --git a/build/esnext/Span.js b/build/esnext/Span.js
+index 185835fdc5667eddb072891618607ce213bb6625..5554c8bde3f6f44504587a88e115104a01d39ec4 100644
+--- a/build/esnext/Span.js
++++ b/build/esnext/Span.js
+@@ -66,7 +66,7 @@ export class SpanImpl {
+         this.parentSpanContext = opts.parentSpanContext;
+         this.kind = opts.kind;
+         this.links = opts.links || [];
+-        this.startTime = this._getTime(opts.startTime ?? now);
++        this.startTime = this._getTime(opts.startTime ?? hrTime(this._performanceStartTime + this._performanceOffset));
+         this.resource = opts.resource;
+         this.instrumentationScope = opts.scope;
+         if (opts.attributes != null) {
+diff --git a/build/src/Span.js b/build/src/Span.js
+index 5a807fe223a70e5e077b66ad74b8efe2eaabd8fa..6388deff9c1e83946f16b04cbfaf884b6f350d29 100644
+--- a/build/src/Span.js
++++ b/build/src/Span.js
+@@ -69,7 +69,7 @@ class SpanImpl {
+         this.parentSpanContext = opts.parentSpanContext;
+         this.kind = opts.kind;
+         this.links = opts.links || [];
+-        this.startTime = this._getTime(opts.startTime ?? now);
++        this.startTime = this._getTime(opts.startTime ?? hrTime(this._performanceStartTime + this._performanceOffset));
+         this.resource = opts.resource;
+         this.instrumentationScope = opts.scope;
+         if (opts.attributes != null) {
diff --git a/.yarn/patches/@opentelemetry-sdk-trace-base-patch-0b7dbf6a30.patch b/.yarn/patches/@opentelemetry-sdk-trace-base-patch-0b7dbf6a30.patch
new file mode 100644
index 000000000..4c3533f83
--- /dev/null
+++ b/.yarn/patches/@opentelemetry-sdk-trace-base-patch-0b7dbf6a30.patch
@@ -0,0 +1,13 @@
+diff --git a/build/src/Span.js b/build/src/Span.js
+index 12c33551fa559f3657e1d9074cadb34b7e73a675..63ac0075b94eae4c519d94c5c141c7002d21e412 100644
+--- a/build/src/Span.js
++++ b/build/src/Span.js
+@@ -69,7 +69,7 @@ class SpanImpl {
+         this.parentSpanContext = opts.parentSpanContext;
+         this.kind = opts.kind;
+         this.links = opts.links || [];
+-        this.startTime = this._getTime(opts.startTime ?? hrTime(this._performanceStartTime + this._performanceOffset));
++        this.startTime = this._getTime(opts.startTime ?? core_1.hrTime(this._performanceStartTime + this._performanceOffset));
+         this.resource = opts.resource;
+         this.instrumentationScope = opts.scope;
+         if (opts.attributes != null) {
diff --git a/package.json b/package.json
index 6ea2fb0ec..045e124dd 100644
--- a/package.json
+++ b/package.json
@@ -80,6 +80,7 @@
     "pkgroll": "patch:pkgroll@npm:2.5.1#~/.yarn/patches/pkgroll-npm-2.5.1-9b062c22ca.patch",
     "tar-fs": "3.0.10",
     "tsx": "patch:tsx@npm%3A4.20.3#~/.yarn/patches/tsx-npm-4.20.3-7de67a623f.patch",
-    "vite": "6.3.5"
+    "vite": "6.3.5",
+    "@opentelemetry/sdk-trace-base@npm:2.0.1": "patch:@opentelemetry/sdk-trace-base@patch%3A@opentelemetry/sdk-trace-base@npm%253A2.0.1%23~/.yarn/patches/@opentelemetry-sdk-trace-base-npm-2.0.1-ebe4f8e34e.patch%3A%3Aversion=2.0.1&hash=212481#~/.yarn/patches/@opentelemetry-sdk-trace-base-patch-0b7dbf6a30.patch"
   }
 }
diff --git a/packages/gateway/package.json b/packages/gateway/package.json
index 89fca814b..998ee0277 100644
--- a/packages/gateway/package.json
+++ b/packages/gateway/package.json
@@ -94,7 +94,7 @@
     "@opentelemetry/sampler-jaeger-remote": "^0.203.0",
     "@opentelemetry/sdk-logs": "^0.203.0",
     "@opentelemetry/sdk-metrics": "^2.0.1",
-    "@opentelemetry/sdk-trace-base": "^2.0.1",
+    "@opentelemetry/sdk-trace-base": "patch:@opentelemetry/sdk-trace-base@patch%3A@opentelemetry/sdk-trace-base@npm%253A2.0.1%23~/.yarn/patches/@opentelemetry-sdk-trace-base-npm-2.0.1-ebe4f8e34e.patch%3A%3Aversion=2.0.1&hash=212481#~/.yarn/patches/@opentelemetry-sdk-trace-base-patch-0b7dbf6a30.patch",
     "commander": "^13.1.0",
     "dotenv": "^17.2.0",
     "graphql-ws": "^6.0.6",
diff --git a/packages/plugins/opentelemetry/package.json b/packages/plugins/opentelemetry/package.json
index c2a7c89b9..5745d3822 100644
--- a/packages/plugins/opentelemetry/package.json
+++ b/packages/plugins/opentelemetry/package.json
@@ -71,7 +71,7 @@
     "@opentelemetry/resources": "^2.0.1",
     "@opentelemetry/sdk-logs": "^0.203.0",
     "@opentelemetry/sdk-node": "^0.203.0",
-    "@opentelemetry/sdk-trace-base": "^2.0.1",
+    "@opentelemetry/sdk-trace-base": "patch:@opentelemetry/sdk-trace-base@patch%3A@opentelemetry/sdk-trace-base@npm%253A2.0.1%23~/.yarn/patches/@opentelemetry-sdk-trace-base-npm-2.0.1-ebe4f8e34e.patch%3A%3Aversion=2.0.1&hash=212481#~/.yarn/patches/@opentelemetry-sdk-trace-base-patch-0b7dbf6a30.patch",
     "@opentelemetry/semantic-conventions": "^1.36.0",
     "@whatwg-node/promise-helpers": "1.3.0",
     "tslib": "^2.8.1"
diff --git a/yarn.lock b/yarn.lock
index 41451a88e..cfc548a9b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4219,7 +4219,7 @@ __metadata:
     "@opentelemetry/sampler-jaeger-remote": "npm:^0.203.0"
     "@opentelemetry/sdk-logs": "npm:^0.203.0"
     "@opentelemetry/sdk-metrics": "npm:^2.0.1"
-    "@opentelemetry/sdk-trace-base": "npm:^2.0.1"
+    "@opentelemetry/sdk-trace-base": "patch:@opentelemetry/sdk-trace-base@patch%3A@opentelemetry/sdk-trace-base@npm%253A2.0.1%23~/.yarn/patches/@opentelemetry-sdk-trace-base-npm-2.0.1-ebe4f8e34e.patch%3A%3Aversion=2.0.1&hash=212481#~/.yarn/patches/@opentelemetry-sdk-trace-base-patch-0b7dbf6a30.patch"
     "@rollup/plugin-commonjs": "npm:^28.0.0"
     "@rollup/plugin-json": "npm:^6.1.0"
     "@rollup/plugin-node-resolve": "patch:@rollup/plugin-node-resolve@npm%3A16.0.1#~/.yarn/patches/@rollup-plugin-node-resolve-npm-16.0.1-2936474bab.patch"
@@ -4693,7 +4693,7 @@ __metadata:
     "@opentelemetry/resources": "npm:^2.0.1"
     "@opentelemetry/sdk-logs": "npm:^0.203.0"
     "@opentelemetry/sdk-node": "npm:^0.203.0"
-    "@opentelemetry/sdk-trace-base": "npm:^2.0.1"
+    "@opentelemetry/sdk-trace-base": "patch:@opentelemetry/sdk-trace-base@patch%3A@opentelemetry/sdk-trace-base@npm%253A2.0.1%23~/.yarn/patches/@opentelemetry-sdk-trace-base-npm-2.0.1-ebe4f8e34e.patch%3A%3Aversion=2.0.1&hash=212481#~/.yarn/patches/@opentelemetry-sdk-trace-base-patch-0b7dbf6a30.patch"
     "@opentelemetry/semantic-conventions": "npm:^1.36.0"
     "@whatwg-node/promise-helpers": "npm:1.3.0"
     "@whatwg-node/server": "npm:^0.10.0"
@@ -7793,7 +7793,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@opentelemetry/sdk-trace-base@npm:2.0.1, @opentelemetry/sdk-trace-base@npm:^2.0.1":
+"@opentelemetry/sdk-trace-base@npm:2.0.1":
   version: 2.0.1
   resolution: "@opentelemetry/sdk-trace-base@npm:2.0.1"
   dependencies:
@@ -7806,6 +7806,32 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@opentelemetry/sdk-trace-base@patch:@opentelemetry/sdk-trace-base@npm%3A2.0.1#~/.yarn/patches/@opentelemetry-sdk-trace-base-npm-2.0.1-ebe4f8e34e.patch::version=2.0.1&hash=212481":
+  version: 2.0.1
+  resolution: "@opentelemetry/sdk-trace-base@patch:@opentelemetry/sdk-trace-base@npm%3A2.0.1#~/.yarn/patches/@opentelemetry-sdk-trace-base-npm-2.0.1-ebe4f8e34e.patch::version=2.0.1&hash=212481"
+  dependencies:
+    "@opentelemetry/core": "npm:2.0.1"
+    "@opentelemetry/resources": "npm:2.0.1"
+    "@opentelemetry/semantic-conventions": "npm:^1.29.0"
+  peerDependencies:
+    "@opentelemetry/api": ">=1.3.0 <1.10.0"
+  checksum: 10c0/1eeddf77153d7f374e57c1033e0971a7aa27e489e17d5679368ccd39b71eb4c467516859e93b627f9bbe3b7af839db44c4de727d1c17bffd3775dd288e64974d
+  languageName: node
+  linkType: hard
+
+"@opentelemetry/sdk-trace-base@patch:@opentelemetry/sdk-trace-base@patch%3A@opentelemetry/sdk-trace-base@npm%253A2.0.1%23~/.yarn/patches/@opentelemetry-sdk-trace-base-npm-2.0.1-ebe4f8e34e.patch%3A%3Aversion=2.0.1&hash=212481#~/.yarn/patches/@opentelemetry-sdk-trace-base-patch-0b7dbf6a30.patch":
+  version: 2.0.1
+  resolution: "@opentelemetry/sdk-trace-base@patch:@opentelemetry/sdk-trace-base@patch%3A@opentelemetry/sdk-trace-base@npm%253A2.0.1%23~/.yarn/patches/@opentelemetry-sdk-trace-base-npm-2.0.1-ebe4f8e34e.patch%3A%3Aversion=2.0.1&hash=212481#~/.yarn/patches/@opentelemetry-sdk-trace-base-patch-0b7dbf6a30.patch::version=2.0.1&hash=9e89a6"
+  dependencies:
+    "@opentelemetry/core": "npm:2.0.1"
+    "@opentelemetry/resources": "npm:2.0.1"
+    "@opentelemetry/semantic-conventions": "npm:^1.29.0"
+  peerDependencies:
+    "@opentelemetry/api": ">=1.3.0 <1.10.0"
+  checksum: 10c0/8dd7c5266da16f3eebe37a2d158c17394b8abfb078b7276600e158d2af280778b77eadc980b91a8ac8b5a3d30e8ebe3bf07308c8e8a859254e0a2c9d61d7d2cf
+  languageName: node
+  linkType: hard
+
 "@opentelemetry/sdk-trace-node@npm:2.0.1":
   version: 2.0.1
   resolution: "@opentelemetry/sdk-trace-node@npm:2.0.1"