Traveler’s Guides to Yokohama Time

A New York caller who memorises “14 hours ahead” in January will dial at the wrong moment in July. The gap shrinks to 13 hours then. Cities that observe daylight saving time shift their clocks twice a year, so the offset between Yokohama and those places changes by an hour each spring and autumn.

  • From New York: 14 hours ahead in January, 13 hours ahead in July.
  • From Los Angeles: 17 hours ahead in January, 16 hours ahead in July.
  • From London: 9 hours ahead in January, 8 hours ahead in July.
  • From Sydney: 2 hours ahead in January, 1 hour ahead in July.

Use the Best Times to Call Yokohama guide to find overlap windows that avoid 03:00 calls.

Jet lag hits hard on flights from the Americas. Arriving in Yokohama after losing 14 to 17 hours means your body clock is inverted. The Yokohama Jet Lag Guide gives arrival-time strategies and light-exposure rules by direction.

Business Scheduling Guides

Yokohama business hours follow a set rhythm, but national holidays change everything. On 20 July 2026, Marine Day, most offices, banks, and government counters close. Public transport runs on a Sunday timetable.

Key business hours: - Banks: 09:00-15:00 weekdays. ATMs open longer. - Government offices: 08:45-17:15 weekdays. Closed weekends and holidays. - Post offices: 09:00-17:00 weekdays; Saturday until 12:30. Closed Sundays and holidays. - Retail: 10:00-20:00 or 10:00-21:00. Convenience stores 24/7.

The Yokohama Business Hours Guide covers exceptions for Golden Week (late April to early May), Obon (mid-August), and New Year (29 December to 3 January).

For stock market timing, the Tokyo Stock Exchange trades 09:00-11:30 and 12:30-15:00 JST. No overlap with New York or London regular sessions. See Tokyo Stock Exchange Hours in Yokohama.

Time Zone and DST Explainers

Yokohama uses Japan Standard Time (JST), UTC+9, IANA zone Asia/Tokyo. That is it. No clock changes. No summer time. The Yokohama Time Zone page explains the 135°E meridian and why Japan abolished DST in 1951.

The Daylight Saving Time in Yokohama page covers the 1948-1951 occupation-era DST and why it never returned. Short version: farmers, educators, and the public rejected it.

Seasonal and Sunlight Guides

Sunlight in Yokohama swings dramatically. No DST means the sun dictates your schedule.

  • December solstice (21 December 2026): Sunrise 06:46, sunset 16:32. Sunlight: 9 hours 46 minutes.
  • June solstice (21 June 2026): Sunrise 04:26, sunset 18:59. Sunlight: 14 hours 33 minutes.
  • March equinox (20 March 2026): Sunrise 05:46, sunset 17:52. Sunlight: 12 hours 6 minutes.
  • September equinox (22 September 2026): Sunrise 05:28, sunset 17:40. Sunlight: 12 hours 12 minutes.

The Yokohama Sunlight Hours Guide maps golden hour and civil twilight by season. The Yokohama Sunrise & Sunset page gives daily times.

Japan’s public holiday calendar affects everything. In 2026, substitute holidays create three-day weekends for Coming of Age Day (12 January), Marine Day (20 July), Respect for the Aged Day (21 September), and Sports Day (12 October). The Japan Public Holidays 2026 page lists all 18 holidays and their impact on business hours.

Quick Start: Most Popular Guides

The next change coming: on 12 January 2026, Coming of Age Day creates a three-day weekend. Banks and government offices close. That Monday, expect holiday timetables on JR East and the Yokohama Municipal Subway. Plan deliveries and meetings accordingly.