Offset
The time difference between Central Time and Haiphong is 12 hours.
Central Time (CDT) is behind Haiphong (ICT).
CDT: UTC-5
ICT: UTC+7
Central Time is currently observing daylight saving time; Haiphong is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Central Time and Haiphong don't overlap on the same weekday. Haiphong is 12 hours ahead of Central Time.
With some flexibility, there are two workable windows outside standard hours, depending on which side takes the early or late slot:
- 7 AM–8 AM in Central Time (7 PM–8 PM in Haiphong) — suggest 7:00 AM Central Time (7:00 PM Haiphong).
- 7 PM–8 PM in Central Time (7 AM–8 AM the next day in Haiphong) — suggest 7:00 PM Central Time (7:00 AM Haiphong).
Either is an early start or late finish for one side, but workable for a one-off meeting.
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
Vietnam
- New Year's DayThu, Jan 1
- Reunification DayThu, Apr 30
- Labour DayFri, May 1
- National DayWed, Sep 2
About these zones
Central Time is also known as CST, or CDT. To call United States, dial +1.
Haiphong uses Indochina Time (ICT). To call Vietnam, dial +84.
Haiphong is approximately 8,000 miles north of Central Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| CST | Haiphong | Day |
|---|---|---|
| 12:00 am | 12:00 pm | Same day |
| 1:00 am | 1:00 pm | Same day |
| 2:00 am | 2:00 pm | Same day |
| 3:00 am | 3:00 pm | Same day |
| 4:00 am | 4:00 pm | Same day |
| 5:00 am | 5:00 pm | Same day |
| 6:00 am | 6:00 pm | Same day |
| 7:00 am | 7:00 pm | Same day |
| 8:00 am | 8:00 pm | Same day |
| 9:00 am | 9:00 pm | Same day |
| 10:00 am | 10:00 pm | Same day |
| 11:00 am | 11:00 pm | Same day |
| 12:00 pm | 12:00 am | +1 day |
| 1:00 pm | 1:00 am | +1 day |
| 2:00 pm | 2:00 am | +1 day |
| 3:00 pm | 3:00 am | +1 day |
| 4:00 pm | 4:00 am | +1 day |
| 5:00 pm | 5:00 am | +1 day |
| 6:00 pm | 6:00 am | +1 day |
| 7:00 pm | 7:00 am | +1 day |
| 8:00 pm | 8:00 am | +1 day |
| 9:00 pm | 9:00 am | +1 day |
| 10:00 pm | 10:00 am | +1 day |
| 11:00 pm | 11:00 am | +1 day |
Daylight saving time
Central Time observes daylight saving time; Haiphong does not. The offset between the two zones changes when Central Time transitions: on Sunday, November 1, 2026, clocks fall back from CDT to CST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:35 AM
- Sunset
- 8:20 PM
- Day length
- 14h 45m
- Sunrise
- 5:24 AM
- Sunset
- 6:36 PM
- Day length
- 13h 12m
Daylight overlap: 2h 56m — 5:24 PM–8:20 PM in Central Time (5:24 AM–8:20 AM in Haiphong). Both locations are in daylight during this window.
Cities in these zones
Cities in Central Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Central Time
- GYY
- MDW
- ORD
- HOU
- IAH
- SAT
- DAL
- DFW
- AUS
- BNA
Airports in Indochina Time
- HAN
- BKK
- DMK
- HPH
Related conversions
Common conversions
- What is 9:00 am CST in Haiphong?
- 9:00 am CST is 9:00 pm Haiphong.
- What is 12:00 pm CST in Haiphong?
- 12:00 pm CST is 12:00 am Haiphong, the next day.
- What is 12:30 pm CST in Haiphong?
- 12:30 pm CST is 12:30 am Haiphong, the next day.
- What is 2:00 pm CST in Haiphong?
- 2:00 pm CST is 2:00 am Haiphong, the next day.
- What is 5:00 pm CST in Haiphong?
- 5:00 pm CST is 5:00 am Haiphong, the next day.
- What is 11:30 pm CST in Haiphong?
- 11:30 pm CST is 11:30 am Haiphong, the next day.