Chronopin: upcoming release dates, events and other important dates

The 2027 Beijing International New-Quality Automotive and Future Smart Mobility Exhibition will run 27 March-5 April 2027 at the Shunyi and CIECC venues, the first Beijing auto event in an odd-numbered year while full-scale shows keep alternating with Shanghai.

The 32 km non-stop link will run every 15 minutes from 5am to midnight between Gare de l'Est and Charles de Gaulle Airport, a 20-minute trip, operated by Hello Paris, a Keolis and RATP Dev joint venture. The infrastructure company, owned in equal shares by Groupe ADP, SNCF Reseau and Banque des Territoires, says it financed the entire project without public subsidies, and CAF France of Alsace supplied the trainsets.

The FTC and state attorneys general take Amazon to a bench trial before Judge John Chun over claims it illegally keeps its online marketplace monopoly by overcharging sellers and punishing those who offer lower prices elsewhere. The trial has slipped twice from its original October 2026 date.

S1123 is a 200 MW battery storage interconnection request in Beauregard, LA. The grid operator lists its queue status as Active. The requested in-service date is 2027-03-29; this is a planning date.

On 27 October 2026 Polymarket put OpenAI shares listed and open for trading by March 31, 2027 at 20%, on US$3,102,693 of event volume. No strike reaches even odds yet, so the date marks the biggest jump in the ladder, not a confident call.

Korea's biggest automotive event, the biennial Seoul Mobility Show, returns to KINTEX in Goyang from 1 to 11 April 2027, with K-Culture programmes agreed between KAMA and KOFICE.

On 27 October 2026 Kalshi put an official Ramp IPO confirmation at 2% before Nov 1, 2026, rising to 20% before Jun 1, 2027. The largest step in the ladder runs from Apr 1, 2027 to May 1, 2027 (12% to 16%), so that window is the market's most likely stretch; it is a bet on timing, not a listing date.

Target Field home opener April2; final home game September26,2027.

Missions home games run April 2–September 5,2027. Times remain TBA.

Harry Styles opens the 25-show 2027 stadium run he has called the final cities of Together, Together at State Farm Stadium outside Phoenix, with Tinashe opening and $20 tickets in a limited tier.

The Rolex Monte-Carlo Masters opens the European clay season again from 3 to 11 April 2027 at the Monte-Carlo Country Club.

The championship reaches Melbourne, where public parkland roads around Albert Park lake become a circuit for the weekend.

The 50th Paris Marathon is on Sunday 4 April 2027 under a new name and organiser, with places drawn by lottery after registration ran from 8 to 30 September 2026.

The championship game of the 88th NCAA Division I men's basketball tournament is played at Ford Field in Detroit, ending a tournament that begins on 16 March and is expanded to 76 teams.

Watches and Wonders Geneva announced its 2027 edition will run 5 to 11 April at Palexpo, adding new exhibitors Breitling, Gallet, Universal Genève and the Italian jeweller Damiani.