Updating current time…
United KingdomGMT
UTC+0
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Texas, USACST
UTC−6
6h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

3:30 pm15:30 GMT (UTC+0), Nov 1, 2026 = 9:30 am09:30 CST (UTC-6), Nov 1, 2026

London is 6 hours ahead of Houston.

How the time difference changes

For most of the year, London is 6 hours ahead of Houston. From Mar 14 to Mar 28, 2027, and from Oct 31 to Nov 7, 2027, London is 5 hours ahead of Houston.

For most of the year, working hours of 9:00 am to 6:00 pm in London correspond to 3:00 am to 12:00 pm in Houston. At other times of the year, working hours of 9:00 am to 6:00 pm in London correspond to 4:00 am to 1:00 pm in Houston.For most of the year, working hours of 09:00 to 18:00 in London correspond to 03:00 to 12:00 in Houston. At other times of the year, working hours of 09:00 to 18:00 in London correspond to 04:00 to 13:00 in Houston.

Compare London time with Houston time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

GMT (Greenwich Mean Time) is 6 hours ahead of CST (Central Standard Time).
3:30 pm15:30 in London, United Kingdom is 9:30 am09:30 in Houston, TX, USA

London to Houston call time
Best time for a conference call or a meeting is between 3pm-6pm15:00-18:00 in London which corresponds to 9am-12pm09:00-12:00 in Houston

3:30 pm15:30 GMT (Greenwich Mean Time) (London, United Kingdom). Offset UTC 0:00 hours
9:30 am09:30 CST (Central Standard Time) (Houston, TX, USA). Offset UTC -6:00 hours

3:30 pm15:30 London, United Kingdom / 9:30 am09:30 Houston, TX, USA

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
London, United KingdomHouston, TX, USA
7:00pm previous day CDT UTC-5
8:00pm previous day CDT UTC-5
9:00pm previous day CDT UTC-5
10:00pm previous day CDT UTC-5
11:00pm previous day CDT UTC-5
12:00am CDT UTC-5
1:00am CDT UTC-5
1:00am
2:00am
3:00am
4:00am
5:00am
6:00am
7:00am
8:00am
9:00am
10:00am
11:00am
12:00pm
1:00pm
2:00pm
3:00pm
4:00pm
5:00pm
19:00 previous day CDT UTC-5
20:00 previous day CDT UTC-5
21:00 previous day CDT UTC-5
22:00 previous day CDT UTC-5
23:00 previous day CDT UTC-5
00:00 CDT UTC-5
01:00 CDT UTC-5
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00

London Time Zone and Facts

Time Zone

Abbreviation / Offset
GMT – Greenwich Mean Time, UTC+0 (now)
BST – British Summer Time, UTC+1 (daylight saving time)
Daylight Saving Time Starts
123456789101112Sunday, March 28, 2027 at 1:00 amSunday, March 28, 2027 at 01:00: clocks go forward 1 hour to 2:00 am02:00 (BST). DST starts on the last Sunday of March each year. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
123456789101112Sunday, October 31, 2027 at 2:00 amSunday, October 31, 2027 at 02:00: clocks go back 1 hour to 1:00 am01:00 (GMT). DST ends on the last Sunday of October each year. Also called Fall Back or Winter Time.

London Facts

Country
United Kingdom
Alternative Names
ILondon, LON, Lakana, Landan, Landen, Ljondan, Llundain, Lodoni, Londain, Londan, Londar, Londe, Londen, Londin, Londinium, Londino, Londn, London, London osh, Londona, Londonas, Londoni, Londono, Londons, Londonu, Londra, Londres, Londrez, Londri, Londro, Londye, Londyn, Londýn, Lonn, Lontoo, Loundres, Luan GJon, Lun-tun, Lunden, Lundra, Lundun, Lundunir, Lundúnir, Lung-dung, Lunnainn, Lunnin, Lunnon, Luân Đôn, Lùn-tûn, Lùng-dŭng, Lûn-tun, Lākana, Lůndůn, Lọndọnu, Ranana, Rānana, ilantan, ladana, landan, landana, leondeon, lndn, london, londoni, lun dui, lun dun, lwndwn, lxndxn, rondon, Łondra, Λονδίνο, Лондан, Лондон, Лондон ош, Лондонъ, Лёндан, Լոնդոն, לאנדאן, לונדון, لأندأن, لندن, لوندون, لەندەن, ܠܘܢܕܘܢ, लंडन, लंदन, लण्डन, लन्डन्, लन्दन, লন্ডন, ਲੰਡਨ, લંડન, ଲଣ୍ଡନ, இலண்டன், లండన్, ಲಂಡನ್, ലണ്ടൻ, ලන්ඩන්, ลอนดอน, ລອນດອນ, ལོན་ཊོན།, လန်ဒန်မြို့, ლონდონი, ለንደን, ᎫᎴ ᏗᏍᎪᏂᎯᏱ, ロンドン, 伦敦, 倫敦, 런던
Population
8,961,989
Currency
Pound (GBP)
Geographic Coordinates
51° 30' N Latitude / 0° 07' W Longitude
International Dialing Code
+44
More About London
Current Time in the United Kingdom

Houston Time Zone and Facts

Time Zone

Abbreviation / Offset
CST – Central Standard Time, UTC-6 (now)
CDT – Central Daylight Time, UTC-5 (daylight saving time)
Daylight Saving Time Starts
123456789101112Sunday, March 14, 2027 at 2:00 amSunday, March 14, 2027 at 02:00: clocks go forward 1 hour to 3:00 am03:00 (CDT). DST starts on the 2nd Sunday of March each year. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
123456789101112Sunday, November 7, 2027 at 2:00 amSunday, November 7, 2027 at 02:00: clocks go back 1 hour to 1:00 am01:00 (CST). DST ends on the 1st Sunday of November each year. Also called Fall Back or Winter Time.

Houston Facts

Country
USA
State
Texas
Alternative Names
Chiouston, HOU, Hiu-su-tun, Hiustonas, Hiû-sṳ̂-tûn, Hjuston, Hjustona, Hjūstona, Houston, Houston City, Hustonia, Hyuston, Kh'juston, Khjustn, Khjustan, Khjuston, hi'ustana, hiustʼoni, hiws tan, hiyustan, hou si dun, husatana, hyuseuteon, hyustan, hyustana, hyusuton, hywstn, hywstwn, xiu si dun, ywstwn, Χιούστον, Хьюстон, Хюстан, Хюстон, Хюстън, Хјустон, Հյուստոն, היוסטן, יוסטון, هيوستن, هیوستون, ھیووستن, ہywsٹn, ہیوسٹن, ह्युस्टन, হিউস্টন, ਹੂਸਟਨ, હ્યુસ્ટન, ஹியூஸ்டன், హ్యూస్టన్, ഹ്യൂസ്റ്റൺ, ฮิวสตัน, ဟူစတန်မြို့, ჰიუსტონი, ሂውስተን, ヒューストン, 休斯敦, 休斯頓, 侯斯頓, 휴스턴
Population
2,314,157
Currency
Dollar (USD)
Geographic Coordinates
29° 45' N Latitude / 95° 21' W Longitude
International Dialing Code
+1