United Kingdom to Chile
-4hUnited Kingdom
BSTSOURCEChile
CLSTGreen rows indicate typical business hours (9 AM - 5 PM)
BST and CLST on the World Map
The map below highlights the BST (Greenwich Mean Time) and CLST (Chile Standard Time) timezone regions across the globe.
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
CLT – Chile Standard Time
UTC-04:00Chile Standard Time (CLT) is the time zone for continental Chile, 4 hours behind UTC.
- •Chile observes daylight saving time, switching to CLST (UTC-03:00) in summer.
- •Santiago is the largest city in Chile with over 6 million in the metro area.
- •Chile spans over 4,300 km from north to south but uses one timezone.
Everything You Need to Know About United Kingdom and Chile Time
United Kingdom runs on British Summer Time (BST) at UTC+01:00, currently observing daylight saving time. Chile runs on Chile Summer Time (CLST) at UTC-03:00, also currently on daylight saving time. That puts United Kingdom 4 hours behind Chile — a difference of -4h at the current offsets.
In practice, when it is 9:00 AM in United Kingdom it is 5:00 AM in Chile. Midnight in United Kingdom is 8:00 PM in Chile. Because both zones shift for daylight saving, the gap between them only changes during the few weeks each year when their transition dates differ.
United Kingdom to Chile time conversion table
| United Kingdom (BST) | Chile (CLST) | Day |
|---|---|---|
| 12:00 AM | 8:00 PM | previous day |
| 6:00 AM | 2:00 AM | same day |
| 7:00 AM | 3:00 AM | same day |
| 8:00 AM | 4:00 AM | same day |
| 9:00 AM | 5:00 AM | same day |
| 12:00 PM | 8:00 AM | same day |
| 3:00 PM | 11:00 AM | same day |
| 5:00 PM | 1:00 PM | same day |
| 6:00 PM | 2:00 PM | same day |
| 9:00 PM | 5:00 PM | same day |
Why people convert United Kingdom to Chile time
- Scheduling a call from United Kingdom to Chile: a 10:00 AM start in United Kingdom lands at 6:00 AM in Chile, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both United Kingdom and Chile are inside the 9-to-5 working day between 1:00 PM and 5:00 PM BST time (9:00 AM–1:00 PM CLST). That is roughly 4 hours of usable overlap.
- Booking travel or deliveries: tracking Chile local time against United Kingdom keeps pickup windows and arrival estimates honest across the -4h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM BST" is unambiguous; "3 PM" across a -4h gap is not.
- Block 1:00 PM–5:00 PM BST as the recurring meeting window if you work primarily from United Kingdom and need Chile colleagues present.
- United Kingdom: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the -4h gap.
- Chile: Clocks fall back on Sun, Apr 4, 2027. Any meeting series spanning that date will shift by an hour in local time.
About GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
About CLT (Chile Standard Time)
Chile Standard Time (CLT) is the standard time in Chile. During summer months (October to March), Chile switches to Chile Summer Time (CLST, UTC-03:00). Chile is the longest north-south country in the world.
Best time to call between United Kingdom and Chile
Both United Kingdom and Chile sit inside the 9 AM – 5 PM working day between 1:00 PM–5:00 PM BST, which is 9:00 AM–1:00 PM CLST. That gives roughly 4 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
United Kingdom and Chile overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.
United Kingdom is 4 hours behind Chile (BST UTC+01:00 → CLST UTC-03:00). The shared working window is 1:00 PM–5:00 PM BST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
United Kingdom
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
Chile
☀ Currently in DST
Standard: UTC-04:00 · DST: UTC-03:00
Clocks fall back on Sun, Apr 4, 2027
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between United Kingdom and Chile?
United Kingdom (BST, UTC+01:00) is 4 hours behind Chile (CLST, UTC-03:00). The gap is currently -4h.
How do I convert United Kingdom time to Chile time?
Add -4h to United Kingdom local time. For example, 9:00 AM in United Kingdom is 5:00 AM in Chile.
What time is it in Chile right now?
Chile uses CLST at UTC-03:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -4h offset from United Kingdom.
What is the best time to call Chile from United Kingdom?
Call between 1:00 PM and 5:00 PM BST — that maps to 9:00 AM–1:00 PM CLST and keeps both parties inside the working day.
Which is behind, United Kingdom or Chile?
United Kingdom is 4 hours behind Chile. When it is 12:00 PM in United Kingdom it is 8:00 AM in Chile.
Do United Kingdom and Chile use different time zones?
United Kingdom (United Kingdom) uses BST at UTC+01:00, while Chile (Chile) uses CLST at UTC-03:00. The IANA identifiers are Europe/London and America/Santiago.
Does daylight saving time affect the United Kingdom–Chile difference?
Both zones observe DST, so the difference stays at -4h for most of the year and only changes during the weeks when their transition dates do not line up.
Which other cities share United Kingdom's time zone?
BST also covers London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar and 5 more.
Which countries use BST, United Kingdom's zone?
BST is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, Mali, Mauritania and 7 more.
Is there a day difference between United Kingdom and Chile?
Not normally. The -4h gap only pushes the date over the previous day.
What is the time difference between United Kingdom and Chile?
Chile is -4h from United Kingdom.
What timezone is United Kingdom in?
United Kingdom operates on its local timezone.
What timezone is Chile in?
Chile operates on its local timezone.
Which countries use GMT (Greenwich Mean Time)?
GMT is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, and 9 more countries.
Does GMT observe daylight saving time?
Yes, GMT switches to BST during summer months.
What are some interesting facts about GMT?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
Which cities are in the CLT timezone?
Major cities in the CLT timezone include Santiago, Valparaíso, Concepción, Viña del Mar, Antofagasta.
What is the UTC offset for CLT?
Chile Standard Time (CLT) is at UTC-04:00. During daylight saving time, it shifts to CLST.
What should I know about the CLT timezone?
Chile observes daylight saving time, switching to CLST (UTC-03:00) in summer. Santiago is the largest city in Chile with over 6 million in the metro area.
When is it midnight in United Kingdom, what time is it in Chile?
When it is 12:00 AM (midnight) in United Kingdom (GMT), it is -4h later in Chile (CLT).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More United Kingdom time conversions
- uk to london
- uk to gmt
- uk to bst
- uk to new york
- uk to dubai
- uk to tokyo
- uk to singapore
- uk to sydney
- uk to los angeles
- uk to paris
- uk to delhi
- uk to mumbai
- uk to berlin
- uk to hong kong
- uk to toronto
- uk to kathmandu
- new york to uk
- london to uk
- dubai to uk
- tokyo to uk
- singapore to uk
- sydney to uk
- los angeles to uk
- paris to uk
- delhi to uk
- mumbai to uk
- berlin to uk
- hong kong to uk
- toronto to uk
- kathmandu to uk
See every conversion from United Kingdom →·See every conversion from Chile →