Verified booking brief
Eligible SmartEX reservations can be requested from 05:30 JST one year ahead. Train times and seats are not confirmed until one month before, and some products are excluded.
PlaceMultiple
Release mechanismFixed window
ConfidenceVerified
Source checked4 August 2026
Use the official channel
- Open the linked provider page; no unofficial seller is substituted.
- Recheck the rule, eligibility and live inventory before payment.
- Variable availability is intentionally left without a calculated deadline.
Official source
SmartEX official reservation period guide · checked 4 August 2026.
