World Timezones

Riyadh to Boise Converter

Compare Boise to Riyadh instead
Riyadh5:58 amMon, Jun 8
RiyadhAST
Saudi Arabia · UTC+3
5:58 amMon, Jun 8
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
BoiseMDT
ID, United States · UTC-6
8:58 pmSun, Jun 7
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p

Offset

The time difference between Riyadh and Boise is 9 hours.

9 hours

Riyadh (AST) is ahead of Boise (MDT).

AST: UTC+3

MDT: UTC-6

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

When to schedule

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

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

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

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

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

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

Boise is approximately 7,600 miles north of Riyadh.

Quick reference

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

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

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

Daylight overlap: 1h 20m — 5:04 AM–6:24 AM in Riyadh (8:04 PM–9:24 PM in Boise). 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 Arabia Standard Time

  • JED
  • RUH
  • MED
  • DMM

Airports in Mountain Time

  • BOI

Related conversions

Common conversions

What is 9:00 am Riyadh in Boise?
9:00 am Riyadh is 12:00 am Boise.
What is 12:00 pm Riyadh in Boise?
12:00 pm Riyadh is 3:00 am Boise.
What is 12:30 pm Riyadh in Boise?
12:30 pm Riyadh is 3:30 am Boise.
What is 2:00 pm Riyadh in Boise?
2:00 pm Riyadh is 5:00 am Boise.
What is 5:00 pm Riyadh in Boise?
5:00 pm Riyadh is 8:00 am Boise.
What is 11:30 pm Riyadh in Boise?
11:30 pm Riyadh is 2:30 pm Boise.