World Timezones

Boise to Riyadh Converter

Compare Riyadh to Boise instead
Boise8:44 pmSun, Jun 7
BoiseMDT
ID, United States · UTC-6
8:44 pmSun, Jun 7
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
RiyadhAST
Saudi Arabia · UTC+3
5:44 amMon, Jun 8
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
4a
5a
6a
7a
8a

Offset

The time difference between Boise and Riyadh is 9 hours.

9 hours

Boise (MDT) is behind Riyadh (AST).

MDT: UTC-6

AST: UTC+3

Boise is currently observing daylight saving time; Riyadh is not.

When to schedule

Standard business hours (9 AM–5 PM, Mon–Fri) in Boise and Riyadh don't overlap on the same weekday. Riyadh is 9 hours ahead of Boise.

With some flexibility, there’s a workable window outside standard hours:

  • 7 AM–11 AM in Boise (4 PM–8 PM in Riyadh) — suggest 9:00 AM Boise (6:00 PM Riyadh).

This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.

This window may shift by an hour during daylight saving time.

Note: the working week in Saudi Arabia runs Sunday–Thursday; Friday–Saturday is the weekend, so overlap on those days is limited.

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

United States

  • New Year's DayThu, Jan 1
  • Martin Luther King, Jr. DayMon, Jan 19
  • Presidents DayMon, Feb 16
  • Memorial DayMon, May 25
  • Juneteenth National Independence DayFri, Jun 19
  • Independence DayFri, Jul 3
  • Labour DayMon, Sep 7
  • Columbus DayMon, Oct 12
  • Veterans DayWed, Nov 11
  • Thanksgiving DayThu, Nov 26
  • Christmas DayFri, Dec 25

About these zones

Boise uses Mountain Time (MST, or MDT). To call United States, dial +1.

Riyadh uses Arabia Standard Time (AST). To call Saudi Arabia, dial +966.

Riyadh is approximately 7,600 miles north of Boise.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

BoiseRiyadhDay
12:00 am9:00 amSame day
1:00 am10:00 amSame day
2:00 am11:00 amSame day
3:00 am12:00 pmSame day
4:00 am1:00 pmSame day
5:00 am2:00 pmSame day
6:00 am3:00 pmSame day
7:00 am4:00 pmSame day
8:00 am5:00 pmSame day
9:00 am6:00 pmSame day
10:00 am7:00 pmSame day
11:00 am8:00 pmSame day
12:00 pm9:00 pmSame day
1:00 pm10:00 pmSame day
2:00 pm11:00 pmSame day
3:00 pm12:00 am+1 day
4:00 pm1:00 am+1 day
5:00 pm2:00 am+1 day
6:00 pm3:00 am+1 day
7:00 pm4:00 am+1 day
8:00 pm5:00 am+1 day
9:00 pm6:00 am+1 day
10:00 pm7:00 am+1 day
11:00 pm8:00 am+1 day

Daylight saving time

Boise observes daylight saving time; Riyadh does not. The offset between the two zones changes when Boise transitions: on Sunday, November 1, 2026, clocks fall back from MDT to MST.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Boise
Sunrise
6:05 AM
Sunset
9:24 PM
Day length
15h 20m
Riyadh
Sunrise
5:04 AM
Sunset
6:42 PM
Day length
13h 37m

Daylight overlap: 1h 20m — 8:04 PM–9:24 PM in Boise (5:04 AM–6:24 AM in Riyadh). Both locations are in daylight during this window.

Cities in these zones

Other cities in Arabia Standard Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Mountain Time

  • BOI

Airports in Arabia Standard Time

  • JED
  • RUH
  • MED
  • DMM

Related conversions

Common conversions

What is 9:00 am Boise in Riyadh?
9:00 am Boise is 6:00 pm Riyadh.
What is 12:00 pm Boise in Riyadh?
12:00 pm Boise is 9:00 pm Riyadh.
What is 12:30 pm Boise in Riyadh?
12:30 pm Boise is 9:30 pm Riyadh.
What is 2:00 pm Boise in Riyadh?
2:00 pm Boise is 11:00 pm Riyadh.
What is 5:00 pm Boise in Riyadh?
5:00 pm Boise is 2:00 am Riyadh, the next day.
What is 11:30 pm Boise in Riyadh?
11:30 pm Boise is 8:30 am Riyadh, the next day.