Convert any time between 55+ travel destinations instantly — perfect for booking flights, scheduling calls, and planning departures.
Popular routes
From
🇺🇸 New York (EST/EDT)
5:58 AM
Mon, Aug 3
To
🇬🇧 London (GMT/BST)
10:58 AM
Mon, Aug 3
London is +5h from New
Good time to callHours when both New and London are between 8 AM and 8 PM.
✈️ Flight arrival math
For overnight flights east (e.g. NYC→London), you lose a night of sleep. Arrive at 7am London time feeling like 2am your time — plan a light day 1.
☀️ Jet lag is directional
Flying east is harder than west. Your body needs ~1 day per time zone crossed to adjust fully. A 9-hour difference = up to 9 days of full adjustment.
📅 Meeting planner rule
When scheduling calls across time zones, state times in BOTH zones: '3pm EST / 8pm GMT'. This eliminates confusion and shows respect for the other person.
📱 Keep your home clock
Many travelers keep their watch on home time during short trips (2-3 days) and only eat/sleep on local time. This prevents scheduling errors on quick business travel.
🌙 The half-zone trap
India (IST, UTC+5:30), Nepal (UTC+5:45), and Iran (UTC+3:30) use half-hour offsets. Always double-check — don't assume whole-hour differences.
🔁 Daylight saving confusion
The US and EU switch DST on different dates (US goes 2nd Sunday March, EU last Sunday March). For ~3 weeks, offsets shift by 1 hour from normal.
Daylight Saving Time reference