Jet lag from Denver to Reykjavík with kids

Trip at a glance

• Time difference+6 hvaries with DST
• Body-clock shift6 hours earlieradvance (harder)
• Days to adjust~6 (4 with head start)adults; kids similar
• Flight time~8h 20mtypical travel time estimate

What does a family jet lag plan for Denver → Reykjavík look like?

Sample built by the calculator for 2 adults and kids aged 3 and 8, departing Jul 1 with a 2-day head start. Home bedtimes: adults 10:30 PM, kids 7:30 PM, everyone up at 6:30 AM. Times before the trip are Denver time; after arrival, Reykjavík time.

How do you beat jet lag from Denver to Reykjavík, step by step?

1. Pre-shift at home: For 2 days before you fly, move bedtimes and wake times earlier each day (adults 60 min, kids 4–8 30 min, babies/toddlers 15 min), with bright light right after waking.
2. Switch to destination time on board: Set devices to Reykjavík time and eat on its meal schedule.
3. Sleep on the plane: Sleep about 12:15 AM–6:30 AM destination time.
4. Time your light: Day 2: get bright light 7:30 AM–1:00 PM. The windows move earlier each day; follow the daily plan.
5. Bedtime on local time: Adults around 12:00 AM on night 1, reaching 10:30 PM by day 5. Wake at a fixed time even after a bad night.
6. Short, early naps: Adults/older kids ≤ 20–30 min; little ones keep naps but on local time, ending by ~4 PM.
7. Melatonin (optional): Adults 0.5–3 mg ~30 min before local bedtime for 4 nights; kids only with pediatrician OK; never babies/toddlers.
8. Meals, caffeine, movement: Eat on local time, hydrate, skip alcohol, adults caffeine mornings only, outdoor activity in the light windows.

What's different about Denver → Reykjavík?

• Flying east is the harder direction. Expect trouble falling asleep and groggy mornings for the first nights, so protect wake-up times.
• Reykjavík does not use daylight saving time, so the gap is 6 or 7 hours depending on whether Denver is on daylight time (mid-March to early November).
• On a typical 5:30 PM departure, the flight overlaps night in Reykjavík. Aim for sleep from about 12:15 AM to 6:30 AM local time, then land ready for a full day.
• Reykjavík sits far north (64°N). Winter mornings are dark until about 8 AM, so use a bright window or light box during morning light windows; summer sunsets after 9 PM make kids' bedtimes harder, so pack blackout covers.

What should each age do?

• Babies & toddlers (0–3): keep naps on Reykjavík clock time and end the last nap by about 4 PM. No melatonin.
• Kids 4–8: one nap of up to 45 minutes before 2 PM on arrival day only if needed, then outdoor play in the light windows.
• Tweens & teens: naps of 20–30 minutes max, devices off an hour before bed, and morning light matters because teens resist moving earlier.
• Adults: 0.5–3 mg melatonin about 30 minutes before local bedtime for a few nights is optional; caffeine in the morning only.

Guides by age

• Jet lag with a baby: naps, feeds and daylight
• Jet lag with a toddler: early wakes and nap caps
• Jet lag with kids 4–8: outdoor play and bedtime routines
• Jet lag with teens: morning light and phones
• Flying east with kids

What about the trip home?

Coming home to Denver is a 6 hours westward shift (usually easier): plan about 4 days to readjust. How to handle jet lag on the way home.

Related routes

• Denver → London
• Denver → Paris
• Denver → Rome
• Denver → Dublin
• New York → Reykjavík
• Boston → Reykjavík

Open the calculator with this route

Not medical advice. General sleep and travel guidance based on published circadian research. Ask your doctor or pediatrician about melatonin or other supplements, pregnancy, medications or health conditions. Never give melatonin to babies or toddlers.