diff --git a/CHANGELOG.md b/CHANGELOG.md
index e63da16c..f4bd0524 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Optimized the job completer's query `JobSetStateIfRunningMany`, resulting in an approximately 15% reduction in its duration when completing 2000 jobs, and around a 15-20% increase in `riverbench` throughput. [PR #904](https://github.com/riverqueue/river/pull/904).
+- `TimeStub` has been removed from the `rivertest` package. Its original inclusion was entirely accidentally and it should be considered entirely an internal API. [PR #912](https://github.com/riverqueue/river/pull/912).
 
 ### Fixed
 
diff --git a/rivertest/time_stub.go b/rivertest/time_stub.go
deleted file mode 100644
index 860720b8..00000000
--- a/rivertest/time_stub.go
+++ /dev/null
@@ -1,48 +0,0 @@
-package rivertest
-
-import (
-	"sync"
-	"time"
-)
-
-// TimeStub implements rivertype.TimeGenerator to allow time to be stubbed in
-// tests. It is implemented in a thread-safe manner with a mutex, allowing the
-// current time to be stubbed at any time with StubNowUTC.
-type TimeStub struct {
-	mu     sync.RWMutex
-	nowUTC *time.Time
-}
-
-// NowUTC returns the current time. This may be a stubbed time if the time has
-// been actively stubbed in a test.
-func (t *TimeStub) NowUTC() time.Time {
-	t.mu.RLock()
-	defer t.mu.RUnlock()
-
-	if t.nowUTC == nil {
-		return time.Now().UTC()
-	}
-
-	return *t.nowUTC
-}
-
-// NowUTCOrNil returns if the currently stubbed time _if_ the current time
-// is stubbed, and returns nil otherwise. This is generally useful in cases
-// where a component may want to use a stubbed time if the time is stubbed,
-// but to fall back to a database time default otherwise.
-func (t *TimeStub) NowUTCOrNil() *time.Time {
-	t.mu.RLock()
-	defer t.mu.RUnlock()
-
-	return t.nowUTC
-}
-
-// StubNowUTC stubs the current time. It will panic if invoked outside of tests.
-// Returns the same time passed as parameter for convenience.
-func (t *TimeStub) StubNowUTC(nowUTC time.Time) time.Time {
-	t.mu.Lock()
-	defer t.mu.Unlock()
-
-	t.nowUTC = &nowUTC
-	return nowUTC
-}
diff --git a/rivertest/time_stub_test.go b/rivertest/time_stub_test.go
deleted file mode 100644
index 8bc7f5b8..00000000
--- a/rivertest/time_stub_test.go
+++ /dev/null
@@ -1,28 +0,0 @@
-package rivertest
-
-import (
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/require"
-
-	"github.com/riverqueue/river/rivertype"
-)
-
-// Ensure that TimeStub implements rivertype.TimeGenerator.
-var _ rivertype.TimeGenerator = &TimeStub{}
-
-func TestTimeStub(t *testing.T) {
-	t.Parallel()
-
-	stub := &TimeStub{}
-
-	now := time.Now().UTC()
-
-	require.WithinDuration(t, now, stub.NowUTC(), 2*time.Second)
-	require.Nil(t, stub.NowUTCOrNil())
-
-	stub.StubNowUTC(now)
-	require.Equal(t, now, stub.NowUTC())
-	require.Equal(t, &now, stub.NowUTCOrNil())
-}
diff --git a/rivertest/worker_test.go b/rivertest/worker_test.go
index 77816bf6..61ced076 100644
--- a/rivertest/worker_test.go
+++ b/rivertest/worker_test.go
@@ -255,7 +255,7 @@ func TestWorker_Work(t *testing.T) {
 
 		bundle := setup(t)
 		hourFromNow := time.Now().UTC().Add(1 * time.Hour)
-		timeStub := &TimeStub{}
+		timeStub := &riversharedtest.TimeStub{}
 		timeStub.StubNowUTC(hourFromNow)
 		bundle.config.Test.Time = timeStub