UTC GuantanamoTime Converter
UTC (UTC±0) is currently 4 hours ahead of Guantanamo (GMT-4, UTC−4). Compare live clocks, convert any hour, and find times to meet.
Quick answer
When it's in UTC, it's the same day in Guantanamo.
UTC runs 4 hours ahead of Guantanamo (GMT-4). Both sides keep standard office hours with a real 9–6 overlap — the highlighted window below works for everyone.
- Time difference
- −4h 00m
- UTC
- UTC±0
- Guantanamo
- UTC−4
- Best call window
- 1:00 PM UTC
UTC to Guantanamo conversion table
The next 12 hours in UTC and the matching local time in Guantanamo. The current hour is highlighted; drag the converter's slider and the table follows.
| UTC | Guantanamo · GMT-4 |
|---|---|
| NOW Mon, Jul 27 |
Sun, Jul 26 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Mon, Jul 27 |
Best time to meet between UTC & Guantanamo
Working hours are 9am–6pm in each city. The bright band is where they overlap: both sides at their desks.
Daylight saving shifts this gap by up to 1 hour
The difference between UTC and Guantanamo swings between 5 and 4 hours across the year as each side starts or ends daylight saving. Clocks in Guantanamo move back 1 hour to UTC−5 (UTC−5) on Sunday, November 1, 2026. This page always shows the live, DST-aware difference.
Related time zone conversions
Jump straight to another pair: every combination is a live tool, not an article.
From UTC
To Guantanamo
UTC, Zulu & reference
One source of truth, for you and your AI
This page exposes the same answer as structured data, so when you ask an assistant "what's 9am UTC time in Guantanamo?", it can cite the exact, DST-aware result, not a stale blog post.
- Schema.org JSON-LD on every converter page
- A machine-readable facts island with time zone identifiers and every possible offset
- Live times in <time datetime> elements with explicit UTC offsets
{
"pair": "UTC → Guantanamo",
"url": "https://worldclock.pro/en/convert/utc-to-guantanamo",
"from": {
"name": "UTC",
"type": "timezone",
"abbreviation": "UTC",
"daylightAbbreviation": null,
"iana": "Etc/UTC",
"standardUtcOffset": "+00:00",
"daylightUtcOffset": null,
"referenceCity": null
},
"to": {
"name": "Guantanamo",
"type": "city",
"abbreviation": "GMT-4",
"daylightAbbreviation": null,
"iana": "America/Havana",
"standardUtcOffset": "-05:00",
"daylightUtcOffset": "-04:00",
"referenceCity": "Guantanamo"
},
"currentDifferenceMinutes": -240,
"possibleDifferencesMinutes": [
-300,
-240
],
"note": "Between the regions that use these zones the difference is 5 and 4 hours across the year, depending on daylight saving on each side. The clocks on this page show the named zones themselves, which are fixed."
}
Frequently asked questions
What is the time difference between UTC and Guantanamo?
UTC is currently 4 hours ahead of Guantanamo. UTC is on UTC (UTC±0) and Guantanamo is on GMT-4 (UTC−4). The difference can change when either side starts or ends daylight saving time.
Is Guantanamo ahead of or behind UTC?
Guantanamo is currently 4 hours behind UTC.
When it is 9:00 AM in UTC, what time is it in Guantanamo?
When it is 9:00 AM on a Monday in UTC, it is 5:00 AM in Guantanamo.
Do UTC and Guantanamo observe daylight saving time?
UTC does not observe daylight saving time. Clocks in Guantanamo move back 1 hour to UTC−5 (UTC−5) on Sunday, November 1, 2026.
How do I convert UTC time to Guantanamo time?
Subtract 4 hours from any time in UTC to get the time in Guantanamo. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.
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