Beyond Milliseconds: Microseconds (µs) → Nanoseconds (ns) → Picoseconds (ps)
Further still: Femtoseconds (fs) → Attoseconds (as)
Approaching the limit: Zeptoseconds (zs) → Yoctoseconds (ys)
Ultimately reaching the theoretical smallest unit of time:
Planck Time (tP) ≈ 5.391 × 10-44 s
(Sub-second display shows the passage of time within each second until the target.)