Compare PST vs SGT
See the current time gap between Pacific Standard Time and Singapore Time, including DST changes and practical overlap hours.
How to Find the Time Difference Between PST and SGT
Open the PST to SGT comparison page: Go to https://www.xconvert.com/time-converter/pst-vs-sgt to load a visual comparison grid with PST and SGT already shown as separate rows across a 24-hour timeline. This page is useful when you are scheduling a call between the US West Coast and Singapore, such as coordinating with a software team in San Francisco and a regional operations, logistics, or finance team in Singapore.
Add relevant comparison cities with the + Add City button: Click “+ Add City” and add cities such as Los Angeles, Seattle, or Vancouver for Pacific Time participants, and Singapore or nearby hubs like Hong Kong or Tokyo if your meeting involves broader Asia-Pacific operations. This is especially practical for industries like cloud software, semiconductor supply chains, e-commerce, and shipping, where teams often span California, Washington, and Southeast Asia.
Drag on the grid to select a workable meeting window: Click “Select” if needed, then drag across the PST row to highlight a time range in purple, such as 4:00 PM to 6:00 PM PST, and the tool will show the corresponding 8:00 AM to 10:00 AM SGT the next day. That visual shift is important for real planning: a late-afternoon handoff in California becomes the next morning in Singapore, which often works well for support escalations, product launches, and overnight engineering follow-up.
Export the selected time range for your team: After selecting the range, use the export options shown on the page: ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. For example, a distributed team can send the ICS file to contractors, use Google Calendar for internal scheduling, paste the converted time into Slack with Copy to clipboard, or send a Share link so everyone sees the same PST-to-SGT overlap without manually recalculating.
PST vs SGT Offset Explained
Singapore Time (SGT) is 16 hours ahead of Pacific Standard Time (PST). PST is UTC-8, while SGT is UTC+8, creating a fixed 16-hour difference when the Pacific zone is on standard time. That means when it is 9:00 AM PST, it is 1:00 AM SGT the next day, and when it is 5:00 PM PST, it is 9:00 AM SGT the next day.
The biggest source of confusion is that PST is only used during the standard-time part of the year, while many people casually say “PST” year-round even when the western United States and Canada are actually observing Pacific Daylight Time (PDT), UTC-7. In the daylight-saving period, the difference between Pacific Time and Singapore narrows to 15 hours instead of 16. So if a colleague says “3 PM PST” in July, they may actually mean 3 PM Pacific Time in daylight saving, which converts differently and can create a one-hour scheduling error.
In the United States and Canada, daylight saving time in the Pacific zone typically starts on the second Sunday in March and ends on the first Sunday in November. For 2025, Pacific Time switches to daylight saving on March 9, 2025, and returns to standard time on November 2, 2025. Singapore does not observe daylight saving time at all, so SGT remains UTC+8 throughout the year, which makes Singapore schedules stable for airlines, shipping operators, financial firms, and regional headquarters.
This difference strongly affects business overlap. A 9:00 AM to 5:00 PM PST workday corresponds to roughly 1:00 AM to 9:00 AM SGT the next day, so only the late PST afternoon overlaps comfortably with the Singapore morning. In practice, 4:00 PM PST to 6:00 PM PST maps to 8:00 AM to 10:00 AM SGT, which is one of the most common windows for cross-Pacific meetings between teams in Los Angeles, San Francisco, Seattle, and Singapore.
Singapore is a major commercial hub with a population of about 5.9 million, and it hosts regional offices for global banks, technology companies, logistics firms, and commodity traders. Pacific Time covers major North American business centers including Los Angeles, San Diego, San Jose, San Francisco, Seattle, Portland, and Vancouver, where industries such as entertainment, software, aerospace, and venture capital frequently work with Asia-Pacific counterparts. Because direct and one-stop flight routes between the US West Coast and Singapore are common for business travel, accurate conversion between PST and SGT is especially important for flight arrivals, hotel check-ins, and next-day meeting planning.
Frequently Asked Questions
What is the exact time difference between PST and SGT?
SGT is 16 hours ahead of PST when Pacific Standard Time is in effect. Since PST is UTC-8 and Singapore Time is UTC+8, you add 16 hours to convert PST to SGT. For example, 10:00 AM PST becomes 2:00 AM SGT the next day.
Is Singapore always 16 hours ahead of Pacific Time?
No, Singapore is not always 16 hours ahead of Pacific Time if you are using “Pacific Time” in the broad sense rather than strictly “PST.” During the daylight-saving period, the Pacific zone uses PDT (UTC-7), so Singapore is then 15 hours ahead instead of 16. This seasonal shift happens because Singapore does not change clocks at all.
Why does my PST to SGT conversion seem off by one hour in summer?
This usually happens because people say “PST” when they actually mean Pacific Time, including the daylight-saving months. From roughly March to November, cities like Los Angeles, San Francisco, and Seattle are normally on PDT, not PST, so the offset to Singapore becomes 15 hours. If you schedule a call using the wrong label, your meeting can end up one hour early or late for everyone involved.
What are the best meeting hours for PST and SGT teams?
The most practical overlap is usually late afternoon in PST and morning in SGT the next day. For example, 4:00 PM PST to 6:00 PM PST converts to 8:00 AM to 10:00 AM SGT, which works well for engineering handoffs, customer support escalation reviews, and APAC sales coordination. Earlier PST morning slots are usually poor for Singapore because they fall late at night or after midnight there.
How do I convert 9 AM PST to Singapore time?
If it is truly 9:00 AM PST, add 16 hours, which gives 1:00 AM SGT the next day. That is why a normal morning meeting on the US West Coast is rarely convenient for Singapore-based colleagues. If the Pacific side is actually on PDT instead, then 9:00 AM Pacific would convert to 12:00 AM SGT the next day, not 1:00 AM.
Does Singapore observe daylight saving time?
No, Singapore does not observe daylight saving time and stays on UTC+8 all year. This consistency is useful for regional scheduling across Southeast Asia, aviation timetables, and financial operations centered in Singapore. Any seasonal change in the PST-to-SGT difference comes entirely from the Pacific side, not from Singapore.
Is PST or SGT better for scheduling calls with global teams?
Neither is universally better; it depends on where the rest of the team is located and which side can take early or late calls. For US West Coast to Singapore collaboration, the most sustainable pattern is usually to place recurring meetings in the late PST afternoon / next-morning SGT window so neither side is forced into midnight calls. If Europe is also involved, teams often need to rotate meeting times because London and Frankfurt sit between these two zones and create a different overlap pattern.
How does the date change when converting from PST to SGT?
Because SGT is 16 hours ahead of PST, the Singapore time is often on the next calendar day. For instance, 6:00 PM PST on Monday becomes 10:00 AM SGT on Tuesday. This next-day jump matters for booking flights, setting project deadlines, and making sure calendar invites show the correct weekday for Asia-based participants.