Convert IST to EST Right Now

To convert from IST to EST, subtract 10 hours and 30 minutes. IST is UTC+5:30 and EST is UTC-5. The difference is 10.5 hours and 30 minutes.

Understanding the IST to EST Offset

IST (Indian Standard Time) has a UTC offset of UTC+5:30. EST (Eastern Standard Time) has a UTC offset of UTC-5. The net difference between these two zones is 10.5 hours and 30 minutes. When it is noon in IST, it is 1:30 AM in EST.

Daylight saving time note: IST does not observe DST. EST observes DST (becomes EDT, UTC-4). During DST periods, the offset between these zones may change by 1 hour. The table below shows standard time offsets.

The IANA timezone identifiers for these zones are Asia/Kolkata (IST) and America/New_York (EST). These identifiers are used by programming languages and operating systems to handle timezone conversions correctly, including automatic DST adjustments.

IST to EST Conversion Table

ISTEST
12:00 AM IST1:30 PM (-1 day) EST
3:00 AM IST4:30 PM (-1 day) EST
6:00 AM IST7:30 PM (-1 day) EST
8:00 AM IST9:30 PM (-1 day) EST
9:00 AM IST10:30 PM (-1 day) EST
10:00 AM IST11:30 PM (-1 day) EST
12:00 PM IST1:30 AM EST
2:00 PM IST3:30 AM EST
3:00 PM IST4:30 AM EST
5:00 PM IST6:30 AM EST
6:00 PM IST7:30 AM EST
8:00 PM IST9:30 AM EST
9:00 PM IST10:30 AM EST
11:00 PM IST12:30 PM EST

Code Examples

Python

from datetime import datetime
from zoneinfo import ZoneInfo

# Current time in IST
now_from = datetime.now(ZoneInfo("Asia/Kolkata"))
# Convert to EST
now_to = now_from.astimezone(ZoneInfo("America/New_York"))
print(f"IST: {now_from.strftime('%I:%M %p')}")
print(f"EST: {now_to.strftime('%I:%M %p')}")

JavaScript

// Convert current time from IST to EST
const now = new Date();
const from = now.toLocaleString("en-US", { timeZone: "Asia/Kolkata" });
const to = now.toLocaleString("en-US", { timeZone: "America/New_York" });
console.log("IST:", from);
console.log("EST:", to);

Go

package main

import (
    "fmt"
    "time"
)

func main() {
    fromLoc, _ := time.LoadLocation("Asia/Kolkata")
    toLoc, _ := time.LoadLocation("America/New_York")
    now := time.Now().In(fromLoc)
    converted := now.In(toLoc)
    fmt.Printf("IST: %s\n", now.Format("3:04 PM"))
    fmt.Printf("EST: %s\n", converted.Format("3:04 PM"))
}

Frequently Asked Questions

What is the time difference between IST and EST?

IST (Indian Standard Time) is UTC+5:30 and EST (Eastern Standard Time) is UTC-5. The standard time difference is 10.5 hours and 30 minutes.

Does daylight saving time affect the IST to EST conversion?

No, IST does not observe DST. EST observes DST and shifts to EDT (UTC-4) during summer months. Always use IANA timezone identifiers in code to automatically handle these transitions.

What are the best overlap hours for IST and EST meetings?

For scheduling meetings between IST and EST, look for hours when both zones are in typical business hours (9 AM to 5 PM). When it is 9:00 AM in IST, it is 10:30 PM (-1 day) in EST. When it is 5:00 PM in IST, it is 6:30 AM in EST. The best overlap window depends on the specific zones and whether DST is active.

Try the full Timezone Converter for any time and zone pair.

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