To time tape an IV you may make your own time tape with adhesive tape or use pre-made labels:
INK ALERT: Never write directly on an IV solution container with a felt tip type marker; the ink may leach into the solution.
The following illustration demonstrates a bag to be initiated at 9am. Calculating IV infusion rate determines that the rate is 100mls per hour. The liter of fluid to infuse at 100mls per hour should be complete in 10 hours, or 7pm.