UTC-01:00
UTC-01:00 means UTC−01:00 throughout the year.
TIME ZONE CONVERTER
Houston to UTC-01:00
Time Converter
Convert Houston, United States to UTC-01:00. Compare dates, seasonal differences and meeting hours.
Houston is 4h or 5h behind UTC-01:00 in 2026, depending on the date.
9 AM Houston = 2 PM UTC-01:00
Selected date: November 3, 2026. Fixed abbreviations retain their stated UTC offsets.
THE QUICK REFERENCE
CSVHouston to UTC-01:00 conversion table
November 3, 2026 · Date changes are marked.
View the full 24-hour table
| Houston | UTC-01:00 |
|---|---|
| 12:00 AM | 5:00 AM |
| 1:00 AM | 6:00 AM |
| 2:00 AM | 7:00 AM |
| 3:00 AM | 8:00 AM |
| 4:00 AM | 9:00 AM |
| 5:00 AM | 10:00 AM |
| 6:00 AM | 11:00 AM |
| 7:00 AM | 12:00 PM |
| 8:00 AM | 1:00 PM |
| 9:00 AM | 2:00 PM |
| 10:00 AM | 3:00 PM |
| 11:00 AM | 4:00 PM |
| Houston | UTC-01:00 |
|---|---|
| 12:00 PM | 5:00 PM |
| 1:00 PM | 6:00 PM |
| 2:00 PM | 7:00 PM |
| 3:00 PM | 8:00 PM |
| 4:00 PM | 9:00 PM |
| 5:00 PM | 10:00 PM |
| 6:00 PM | 11:00 PM |
| 7:00 PM | 12:00 AM +1 day |
| 8:00 PM | 1:00 AM +1 day |
| 9:00 PM | 2:00 AM +1 day |
| 10:00 PM | 3:00 AM +1 day |
| 11:00 PM | 4:00 AM +1 day |
Starting with the UTC-01:00 working day
These examples start on 2026-11-03 in UTC-01:00.
09:00 UTC-01:0004:00 →Houston · 2026-11-03
17:00 UTC-01:0012:00 →Houston · 2026-11-03
Which time-zone meaning are we using?
ONE CLOCK TIME. THE WHOLE YEAR.
Year CSV09:00 Houston to UTC-01:00 throughout 2026
Keeping 09:00 on the Houston clock produces 2 different destination clock/date answers in 2026. The ranges below use Houston calendar dates, including transition days.
| Dates in Houston · 2026 | UTC-01:00 answer | Source → destination offsets | Explore |
|---|---|---|---|
| Jan 1 – Mar 766 dates | 14:00Same date | UTC−06:00 → UTC−01:00 | |
| Mar 8 – Oct 31238 dates | 13:00Same date | UTC−05:00 → UTC−01:00 | |
| Nov 1 – Dec 3161 dates | 14:00Same date | UTC−06:00 → UTC−01:00 |
Every calendar date is included, not just workdays. Date ranges include both endpoints. Based on IANA 2026e; future rules may change.
DON’T LOSE A DAY
When does Houston time become a different date in UTC-01:00?
Your complete source day: 2026-11-03. Each range shows which destination date to use.
Houston · 2026-11-0300:00–19:00UTC−06:00
UTC-01:00 · 2026-11-0305:00–24:00UTC−01:00 Same date
Houston · 2026-11-0319:00–24:00UTC−06:00
UTC-01:00 · 2026-11-0400:00–05:00UTC−01:00 Next day
Range starts are included; ends are excluded. 24:00 means midnight at the end of that date. Repeated hours appear separately with their UTC offsets. The strip is proportional to elapsed time.
THE BIGGER PICTURE
2026A year of time differences.
How UTC-01:00 compares with Houston throughout 2026.
JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
+5h
+4h
+5h
Houston changes its UTC offset in 2026. UTC-01:00 is a fixed offset.
See exact change periods
| From (UTC, inclusive) | Until (UTC, exclusive) | UTC-01:00 vs Houston |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 8 Mar 2026, 08:00 UTC | 5h ahead |
| 8 Mar 2026, 08:00 UTC | 1 Nov 2026, 07:00 UTC | 4h ahead |
| 1 Nov 2026, 07:00 UTC | 1 Jan 2027, 00:00 UTC | 5h ahead |
CLOCK CHANGES
What changes at the next clock adjustment?
Exact periods outside the most common difference in 2026
The most frequent difference has UTC-01:00 4h ahead relative to Houston. Exceptions:
| From (UTC, inclusive) | Until (UTC, exclusive) | Compared with Houston |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 8 Mar 2026, 08:00 UTC | 5h ahead |
| 1 Nov 2026, 07:00 UTC | 1 Jan 2027, 00:00 UTC | 5h ahead |
PLAN BEYOND A SINGLE DAY
Daily CSVHouston–UTC-01:00 working hours through 2026
Every date calculated with your working windows. 261 selected Houston workdays; public holidays are not applied.
Least shared time3h
Most common4h
Most shared time4h
Days without a 60-min slot0 / 261
A start time that survives the whole year.
Start a 60-minute meeting in Houston 09:00–11:00.
These starts fit both working windows on every selected Houston workday in 2026, using a 15-minute start grid. The end of each range is the last valid start.
Houston: 09:00–17:00, Mon, Tue, Wed, Thu, Fri. UTC-01:00: 09:00–17:00, Mon, Tue, Wed, Thu, Fri.
Calculation details and repeated hours
Overnight shifts belong to their start weekday. Host workday means the source calendar date. Repeated local times use the first occurrence.
THE DETAILS THAT MATTER
Houston to UTC-01:00: useful answers
Why is the Houston to UTC-01:00 difference sometimes 4 hours and sometimes 5 hours?
Houston is 4h or 5h behind UTC-01:00 in 2026, depending on the date. Houston changes its UTC offset in 2026. UTC-01:00 is a fixed offset.
Does the Houston–UTC-01:00 time difference change in 2026?
The published rules produce 3 periods with 2 different offsets in 2026. See the annual chart for the exact boundaries of each period.
Does this conversion change the calendar date?
09:00 in Houston on 2026-11-03 is 14:00 in UTC-01:00 on 2026-11-03. This selected time stays on the same date in both places. Other times can cross midnight.
Can Houston and UTC-01:00 meet during working hours?
Your selected working windows share 3h on 2026-11-03. The planner above checks the whole meeting duration and shows suitable start times. Edit the windows to match your team.
Calculated with IANA 2026e. Working hours are your preferences; public holidays and calendar availability are not included. Our methodology