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internal/util/clock.go

@@ -17,8 +17,9 @@ func NewClock() (c *Clock) {
 // Restart resets the start time.
 // It also returns the elapsed time.
 func (c *Clock) Restart() (t time.Duration) {
-	t = time.Since(c.t)
-	c.t = time.Now()
+	now := time.Now()
+	t = now.Sub(c.t)
+	c.t = now
 	return
 }