US session boundaries in New York, UTC and Israel time
Answered against 22 years of US equities and 12 years of US options data and published with the query that produced it. This result is stored as of 2026-10-05, from US Premarket and After-Hours in Israel Time.
| us_session_boundary | new_york_clock | utc_clock | israel_clock | israel_calendar_day | new_york_utc_offset_hours | israel_utc_offset_hours |
|---|---|---|---|---|---|---|
| Premarket session opens | 04:00 | 08:00 | 11:00 | same day | -4 | 3 |
| Regular session opens | 09:30 | 13:30 | 16:30 | same day | -4 | 3 |
| Regular session closes | 16:00 | 20:00 | 23:00 | same day | -4 | 3 |
| After-hours session ends | 20:00 | 00:00 | 03:00 | next day | -4 | 3 |
- Rows × columns
- 4 × 7
- Computed
- Completeness
- No missing values
- Source
- US exchange, SIP and OPRA market data
- Licence
- Strasmore terms · free, no signup
What each column holds
| Column | Type | Range | Notes |
|---|---|---|---|
us_session_boundary |
text | 4 distinct values | |
new_york_clock |
text | 4 distinct values (04:00, 09:30, 16:00…) | |
utc_clock |
text | 4 distinct values (00:00, 08:00, 13:30…) | |
israel_clock |
text | 4 distinct values (03:00, 11:00, 16:30…) | |
israel_calendar_day |
text | 2 distinct values (next day, same day) | |
new_york_utc_offset_hours |
number | every row is -4 | |
israel_utc_offset_hours |
number | every row is 3 |
Computed from Strasmore's warehouse of US exchange, SIP and OPRA market data. Equity prices are delayed; options greeks and implied volatility are end-of-day. This result is stored, not recomputed on load — it is exactly the numbers that were returned on , and the query below is what returned them.
Run it yourself
This is the exact query behind the result above. Change a ticker, a date or a column and run it against the warehouse — no account, no key. The no-signup tier is smaller than the one this page was computed on; a query that reaches past it comes back saying which plan runs it.
SELECT
tupleElement(b, 1) AS us_session_boundary,
tupleElement(b, 2) AS new_york_clock,
formatDateTime(toTimeZone(stamp, 'UTC'), '%H:%i') AS utc_clock,
formatDateTime(toTimeZone(stamp, 'Asia/Jerusalem'), '%H:%i') AS israel_clock,
if(toDate(toTimeZone(stamp, 'Asia/Jerusalem')) > toDate(toTimeZone(stamp, 'America/New_York')),
'next day', 'same day') AS israel_calendar_day,
toInt32(timeZoneOffset(toTimeZone(stamp, 'America/New_York')) / 3600) AS new_york_utc_offset_hours,
toInt32(timeZoneOffset(toTimeZone(stamp, 'Asia/Jerusalem')) / 3600) AS israel_utc_offset_hours
FROM
(
SELECT
b,
toDateTime(concat(toString(today()), ' ', tupleElement(b, 2), ':00'), 'America/New_York') AS stamp
FROM
(
SELECT arrayJoin([
('Premarket session opens', '04:00'),
('Regular session opens', '09:30'),
('Regular session closes', '16:00'),
('After-hours session ends', '20:00')
]) AS b
)
)
ORDER BY new_york_clock
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