DST & Time Zone Change Viewer
This tool helps you check Daylight Saving Time (DST) information for any time zone. Find out if a location uses DST, whether it's currently in effect, and when the next time change is scheduled. It's perfect for anyone who needs to keep track of time zone transitions for travel, international business, or scheduling.
How it works: Simply select a time zone from the list. The calculator analyzes the time zone's behavior over the year to detect DST shifts and identifies the date and time of the next upcoming change.
How it works: Simply select a time zone from the list. The calculator analyzes the time zone's behavior over the year to detect DST shifts and identifies the date and time of the next upcoming change.
DST & Time Zone Examples
Explore common locations to see how the viewer analyzes offsets, detects Daylight Saving Time, and pinpoints the next clock change. Load any scenario to replicate it in the calculator.
New York City, USA
Eastern Time jumps between EST and EDT each year during spring and fall.
- January offset: UTC-05:00
- July offset: UTC-04:00
- Current offset: UTC-05:00
DST status
Standard time now
Next change: March 8, 2026 at 03:00 AM
UTC-05:00 → UTC-04:00
How this example was calculated
- Compare offsets six months apart: UTC-05:00 vs UTC-04:00 — a difference of 60 minutes (1.00 hours).
- Because the offsets differ, the viewer flags Daylight Saving Time and looks at the current offset (UTC-05:00) to confirm it is currently paused.
- Scanning ahead day by day finds the next change on March 8, 2026 at 03:00 AM, where clocks move forward from UTC-05:00 to UTC-04:00.
Singapore
Singapore Standard Time stays on the same UTC offset year-round with no DST shifts.
- January offset: UTC+08:00
- July offset: UTC+08:00
- Current offset: UTC+08:00
DST status
No DST observed
Offset stays constant year-round
How this example was calculated
- Compare offsets six months apart: UTC+08:00 vs UTC+08:00 — the match shows there is no seasonal time change.
- Matching offsets mean no DST is observed. The viewer treats Singapore as a fixed-offset zone.
- No offset change appears within the next 12 months, so the zone keeps UTC+08:00 all year.
Sydney, Australia
Sydney moves clocks forward in October and back in April to match Australian daylight saving rules.
- January offset: UTC+11:00
- July offset: UTC+10:00
- Current offset: UTC+11:00
DST status
In DST now
Next change: April 5, 2026 at 02:00 AM
UTC+11:00 → UTC+10:00
How this example was calculated
- Compare offsets six months apart: UTC+11:00 vs UTC+10:00 — a difference of 60 minutes (1.00 hours).
- Because the offsets differ, the viewer flags Daylight Saving Time and looks at the current offset (UTC+11:00) to confirm it is currently in effect.
- Scanning ahead day by day finds the next change on April 5, 2026 at 02:00 AM, where clocks move back from UTC+11:00 to UTC+10:00.