IST to Port Arthur Time Converter
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Quick answers
Selected conversion
5:30 pm17:30 IST (UTC+5:30), Oct 25, 2026 = 7:00 am07:00 CDT (UTC-5), Oct 25, 2026
IST is 10 hours and 30 minutes ahead of Port Arthur.
How the time difference changes
For most of the year, IST is 10 hours and 30 minutes ahead of Port Arthur. From Nov 1, 2026 to Mar 14, 2027, IST is 11 hours and 30 minutes ahead of Port Arthur.
For most of the year, working hours of 9:00 am to 6:00 pm in IST correspond to 10:30 pm (previous day) to 7:30 am in Port Arthur. At other times of the year, working hours of 9:00 am to 6:00 pm in IST correspond to 9:30 pm (previous day) to 6:30 am in Port Arthur.For most of the year, working hours of 09:00 to 18:00 in IST correspond to 22:30 (previous day) to 07:30 in Port Arthur. At other times of the year, working hours of 09:00 to 18:00 in IST correspond to 21:30 (previous day) to 06:30 in Port Arthur.
Compare IST time with Port Arthur time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
India Standard Time is 10 hours and 30 minutes ahead of CDT (Central Daylight Time).
5:30 pm17:30 in IST is 7:00 am07:00 in Port Arthur, TX, USA
IST to Port Arthur call time
Best time for a conference call or a meeting is between 6:30pm-7:30pm18:30-19:30 in IST which corresponds to 8am-9am08:00-09:00 in Port Arthur. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
7:00 am07:00 CDT (Central Daylight Time) (Port Arthur, TX, USA). Offset UTC -5:00 hours
5:30 pm17:30 IST / 7:00 am07:00 Port Arthur, TX, USA
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India Standard Time
Offset: IST is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT).
Countries using this time zone: India
Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bengaluru, Hyderabad, Ahmedabad.
Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
Current time in India: India time now
IST representations, usage and related time zones
- +0530 - basic
- +05:30 - extended
- +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates an offset of five hours and thirty minutes to the east of the zero meridian.
- Asia/Calcutta
- Asia/Kolkata
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
Port Arthur Time Zone and Facts
Time Zone
CST – Central Standard Time, UTC-6 (standard time)