IST to PST Converter
Convert time between India Standard Time (IST) and Pacific Standard Time (PST)
India Standard Time (IST)
17:58:27
Nov 11, 2025
UTC
Pacific Standard Time (PST)
17:58:27
Nov 11, 2025
UTC
Time Difference
Pacific Standard Time (PST) is 0 hours ahead of India Standard Time (IST)
Select Date
Select Time
Quick Reference
| IST | PST |
|---|---|
| 07:30 | 18:00 |
| 09:30 | 20:00 |
| 11:30 | 22:00 |
| 13:30 | 00:00 |
| 15:30 | 02:00 |
| 17:30 | 04:00 |
| 19:30 | 06:00 |
| 21:30 | 08:00 |
| 23:30 | 10:00 |
| 01:30 | 12:00 |
| 03:30 | 14:00 |
| 05:30 | 16:00 |
Related Time Zone Conversions
About IST to PST Time Conversion
Converting time between India Standard Time (IST) and Pacific Standard Time (PST) is essential for coordinating between India and the US West Coast. IST is UTC+5:30 (consistent year-round, no daylight saving time), while PST is UTC-8 (observed November to March). IST is 13.5 hours ahead of PST.
This conversion is crucial for Indian tech companies coordinating with Silicon Valley offices, software development teams, startups, and businesses bridging India and West Coast operations. India Standard Time is unique with its 30-minute offset and does not observe daylight saving time, making it consistently ahead year-round. However, the US West Coast observes daylight saving time, so the offset changes to 12.5 hours when PDT is active.
Common Use Cases for IST to PST Conversion
Business & Work
- Scheduling calls between Indian tech companies and Silicon Valley offices
- Coordinating software development teams across India and West Coast
- Managing startup operations with teams in India and California
- Planning conference calls for product development and customer support teams
Personal & Travel
- Coordinating with family and friends in California or Pacific Northwest
- Planning travel between India and West Coast destinations
- Scheduling virtual meetings with West Coast relatives or business partners
- Arranging online collaboration with West Coast-based colleagues
Time Zone Information
India Standard Time (IST)
- UTC Offset: UTC+5:30
- IANA Timezone: Asia/Kolkata
- Daylight Saving: No daylight saving time (consistent year-round)
- Major Cities: New Delhi, Mumbai, Bangalore, Hyderabad, Chennai, Kolkata
- Coverage: Entire India (single timezone covering entire nation)
Pacific Standard Time (PST)
- UTC Offset: UTC-8
- IANA Timezone: America/Los_Angeles
- Daylight Saving: Standard time (November to second Sunday in March)
- Major Cities: Los Angeles, San Francisco, Seattle, San Diego, Portland, Sacramento
- Coverage: Pacific United States and Canada (winter months)
Quick Reference: IST to PST
10:00 AM IST
8:30 PM PST (previous day)
1:00 PM IST
11:30 PM PST (previous day)
6:00 PM IST
4:30 AM PST
9:00 PM IST
7:30 AM PST
Remember: IST is always 13.5 hours ahead of PST. When PST changes to PDT (daylight saving time), the difference becomes 12.5 hours.
Frequently Asked Questions
What is the time difference between IST and PST?
IST (India Standard Time) is UTC+5:30, while PST (Pacific Standard Time) is UTC-8, making IST 13.5 hours ahead of PST. India does not observe daylight saving time, so IST remains constant year-round. However, the US West Coast observes daylight saving time, so when PST changes to PDT (UTC-7) from March to November, the difference becomes 12.5 hours.
How does the 30-minute IST offset affect conversions?
IST's unique UTC+5:30 offset means that time conversions result in half-hour differences. For example, noon IST converts to 11:30 PM PST the previous day (not midnight). This 30-minute precision is important when scheduling meetings or converting times, as standard time zones typically align on the hour.
What does daylight saving time mean for IST-PST conversions?
India does not observe daylight saving time, so IST (UTC+5:30) stays constant year-round. However, the US West Coast transitions between PST (UTC-8) and PDT (UTC-7) based on daylight saving time rules (second Sunday in March to first Sunday in November). This means the IST-PST offset changes from 13.5 hours to 12.5 hours depending on the season.
What is the best time to schedule India-Silicon Valley meetings?
Finding a mutually convenient time between India and Silicon Valley is very challenging due to the large time gap. The most practical windows are: early morning in California (6:00-9:00 AM PST) which is evening in India (7:30-10:30 PM IST), or late evening in India (9:00-11:00 PM IST) which corresponds to 7:30-9:30 AM PST. Consider rotating times or splitting meetings.
How do I calculate IST to PST conversion manually?
To convert from IST to PST, subtract 13.5 hours from the IST time. For example: 6:00 PM IST - 13.5 hours = 4:30 AM PST. If the result is negative, add 24 hours and subtract 1 from the date. For example, 9:00 AM IST - 13.5 hours = -4.5 hours, which equals 7:30 PM PST the previous day.
Why do Indian tech companies coordinate with Silicon Valley?
Silicon Valley is the global hub for technology innovation and investment. Many Indian tech companies, software development firms, and startups partner with or have offices in Silicon Valley for product development, venture capital access, and international business growth. This creates a significant need for India-West Coast timezone coordination.
Pro Tips
- • The unique 30-minute offset of IST (UTC+5:30) requires careful attention when scheduling. Always account for the half-hour difference, not just the hours.
- • India's single unified timezone spans the entire nation. Business hours in western India (Mumbai, Bangalore) may feel earlier relative to the sun compared to eastern regions.
- • The India-Silicon Valley time gap is the largest among major business hubs (13.5 hours during PST, 12.5 hours during PDT). Consider asynchronous communication for non-urgent matters.
- • Early morning in Silicon Valley (6:00-9:00 AM PST) is the sweet spot for live meetings with India. This is evening time in India (7:30-10:30 PM IST), which falls within extended business hours.
- • When PST transitions to PDT (second Sunday in March), remember the offset decreases from 13.5 to 12.5 hours. Plan ahead for this seasonal shift in your meeting schedule.
- • For regular India-Silicon Valley coordination, consider rotating meeting times or using task management tools and asynchronous communication for better work-life balance across both regions.
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Engineering
Voltage Divider Calculator
Calculate output voltage, resistor values, power dissipation, and current for voltage divider circuits used in electronics and engineering.
Resistor Color Code Calculator
Decode resistor color bands to determine resistance values, tolerance, and power ratings for 4, 5, and 6-band resistors with visual representation.
Capacitor Value Calculator
Convert capacitor marking codes to values in pF, nF, and µF. Support for 3-digit codes, tolerance letters, and reverse lookup from value to code.
Wire Gauge Converter
Convert between AWG, millimeters, inches, square mm, square inches, and circular mils. Complete AWG chart with current ratings and resistance values.
Wave Frequency Calculator
Calculate wave frequency, wavelength, and speed using f=v/λ. Support for electromagnetic waves, sound waves, and custom mediums with unit conversions.
Fourier Series Visualizer
Interactive tool for visualizing Fourier series decomposition with real-time coefficient calculation, animation, and function approximation for signal analysis.
Sampling & Nyquist Calculator
Calculate Nyquist rate, check sampling sufficiency, analyze aliasing, and compute oversampling ratios for signal processing applications.
Beam Deflection Calculator
Calculate maximum deflection for simply supported and cantilever beams with point loads or distributed loads. Includes structural engineering formulas and design guidelines.
Bolt Torque Calculator
Calculate proper tightening torque for bolts based on material grade, preload requirements, and friction coefficients. Includes safety checks and engineering formulas.
Gear Ratio Calculator
Free professional gear ratio calculator for mechanical engineering. Calculate speed reduction, torque multiplication, compound gear trains, and mechanical advantage with real-time formulas and step-by-step solutions.
Molar Mass Calculator
Calculate molar mass and analyze chemical formulas with detailed elemental breakdown. Supports complex formulas, hydrates, parentheses, and provides mass percentages for chemistry applications.
Ideal Gas Law Calculator
Calculate pressure, volume, temperature, or moles using the ideal gas law (PV = nRT). Free calculator with multiple units, step-by-step solutions, and educational content for chemistry and physics.
Op-Amp Calculator
Calculate operational amplifier circuit parameters for inverting, non-inverting, differential, and integrator/differentiator configurations. Include gain, input/output impedance, and bandwidth calculations.
Heat Transfer Calculator
Calculate heat transfer rates for conduction, convection, and radiation. Include thermal resistance, heat exchanger analysis, and cooling calculations for engineering applications.
Transformer Turns Calculator
Calculate transformer turns ratios, primary/secondary voltages, currents, and power relationships. Include step-up/step-down calculations, impedance transformation, and efficiency calculations.
Power Electronics Calculator
Design and analyze DC-DC converters (buck, boost, buck-boost), calculate switching frequencies, inductor/capacitor values, and efficiency for power supply design.
Motor RPM Calculation
Calculate motor rotational speed from Hall-effect sensors, encoders, tachometers, and back-EMF measurements. Includes filtering, calibration, and performance analysis for motor control applications.
KVAR Calculator
Calculate required reactive power (KVAR) for power factor correction, capacitor bank sizing, and energy savings analysis for electrical systems and industrial applications.
HP to kW Motor Converter
Convert between horsepower (HP) and kilowatts (kW) for mechanical, electrical, and metric motor ratings with efficiency and load adjustments for engineering applications.
mAh to Wh Converter
Convert battery capacity between milliamp-hours (mAh) and watt-hours (Wh). Calculate energy storage for batteries, power banks, and electronic devices.
kW to kWh Converter
Convert kilowatts (kW) to kilowatt-hours (kWh) and calculate energy consumption from power and time. Estimate electricity costs for appliances and devices.
kWh to Watts Converter
Convert kilowatt-hours (kWh) to watts and calculate average power consumption from energy and time. Understand device power ratings and energy usage patterns.
Screensaver
Black Screen
A free backlight bleed tester to check dead pixels, backlight bleeding. Test monitor, laptop, mobile screen or other display issues.
White Screen
Quickly detect dead pixels, screen flicker, or backlight bleed on any monitor with our advanced display testing tool.
Red Screen
Spot dead pixels, color uniformity issues, or backlight bleeding fast-ensure your screen quality with our pixel checker.
Green Screen
Instantly check for dead pixels, backlight bleed, or display defects to guarantee flawless screen performance.
Blue Screen
Test your monitor for dead pixels, backlight bleeding, and color inconsistencies in seconds with our display diagnostic tool.
Yellow Screen
Identify dead pixels, uneven backlighting, or screen defects easily-optimize your monitor's display quality now.
Purple Screen
Find and fix dead pixels, backlight bleeding, or display issues using our comprehensive screen testing solution.
Cyan Screen
Ensure perfect screen quality by detecting dead pixels, backlight bleed, and other monitor issues instantly.
Orange Screen
Diagnose dead pixels, backlight bleeding, or display problems quickly-improve your monitor's performance and viewing experience.
Pink Screen
Uncover dead pixels, backlight bleed, or screen defects fast with our user-friendly display testing tool.
Brown Screen
Verify your screen for dead pixels, backlight bleeding, or color issues to maintain top display performance.
Gray Screen
Easily detect dead pixels, backlight bleed, and other screen issues to ensure your display's optimal quality.
Lime Screen
Quickly identify and troubleshoot dead pixels, backlight bleeding, and display defects for a flawless viewing experience.
Time Screen
Display the local time on your screensaver, automatically adjusting to your current time zone for accurate, real-time clock display.
Date Screen
A screensaver that displays the current date and time. Real-time clock display on your desktop or device.
Clock Screen
Elegant clock screensaver displaying the current time with customizable styles, perfect for adding a sleek look to your screen.
Utilities
Webcam Tester
Quickly test your webcam and verify camera settings to ensure optimal video quality and proper device functionality.
Microphone Test
Test your microphone and verify settings to ensure clear audio quality and proper device performance for free.
Flashlight Tester
Test your flashlight and verify settings to ensure optimal lighting and proper device functionality for free.
Morse Code Translator
Free online Morse code generator. Convert text to Morse code, e.g.: SOS in morse code, and vice versa.
Cookie Manager
View, edit, and manage your browser cookies effortlessly to control privacy, enhance security, and customize your browsing experience.
Credit Card Number Validation
Validate credit card numbers using the Luhn algorithm to ensure they are valid and secure.
Online Tally Counter
Free online tally counter with multiple counters, labels, and total calculation. Perfect for counting, tracking, and tallying various items.
Spacebar Counter
Simple spacebar counter - press spacebar or click + button to count. Perfect for counting repetitions, events, or any activity.
Password Strength Tester
Test your password strength and learn how secure your password is. Get real-time feedback and tips to create stronger passwords.
Website Screenshot
Generate screenshots of websites by entering a URL, with options for different device viewports (mobile, tablet, desktop) and full-page captures.
Color Blindness Simulator
Simulate how colors appear to users with different types of color blindness to ensure designs are accessible to users with color vision deficiencies.
Weight Tracker
Track and compare weight progress for multiple users. Add, edit, and delete weight records with visual progress reports and user comparison.
Printable
Printable Calendar
Generate and download printable monthly calendars for any month and year. Perfect for planning, organizing, and printing.
January 2025 Calendar
Generate and download printable January 2025 Calendar. Perfect for planning, organizing, and printing.
February 2025 Calendar
Generate and download printable February 2025 Calendar. Perfect for planning, organizing, and printing.
March 2025 Calendar
Generate and download printable March 2025 Calendar. Perfect for planning, organizing, and printing.
April 2025 Calendar
Generate and download printable April 2025 Calendar. Perfect for planning, organizing, and printing.
May 2025 Calendar
Generate and download printable May 2025 Calendar. Perfect for planning, organizing, and printing.
June 2025 Calendar
Generate and download printable June 2025 Calendar. Perfect for planning, organizing, and printing.
July 2025 Calendar
Generate and download printable July 2025 Calendar. Perfect for planning, organizing, and printing.
August 2025 Calendar
Generate and download printable August 2025 Calendar. Perfect for planning, organizing, and printing.
September 2025 Calendar
Generate and download printable September 2025 Calendar. Perfect for planning, organizing, and printing.
October 2025 Calendar
Generate and download printable October 2025 Calendar. Perfect for planning, organizing, and printing.
November 2025 Calendar
Generate and download printable November 2025 Calendar. Perfect for planning, organizing, and printing.
December 2025 Calendar
Generate and download printable December 2025 Calendar. Perfect for planning, organizing, and printing.
January 2026 Calendar
Generate and download printable January 2026 Calendar. Perfect for planning, organizing, and printing.
February 2026 Calendar
Generate and download printable February 2026 Calendar. Perfect for planning, organizing, and printing.
March 2026 Calendar
Generate and download printable March 2026 Calendar. Perfect for planning, organizing, and printing.