diff --git a/packages/taler-util/src/time.ts b/packages/taler-util/src/time.ts
index a63f9b296..c677d52ae 100644
--- a/packages/taler-util/src/time.ts
+++ b/packages/taler-util/src/time.ts
@@ -92,7 +92,7 @@ export namespace TalerPreciseTimestamp {
   export function fromMilliseconds(ms: number): TalerPreciseTimestamp {
     return {
       t_s: Math.floor(ms / 1000),
-      off_us: Math.floor((ms - Math.floor(ms / 100) * 1000) * 1000),
+      off_us: Math.floor((ms - Math.floor(ms / 1000) * 1000) * 1000),
     };
   }
 }