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TimezonePair
Home·Port Louis·Port Louis × St. Louis
Prime meridian·:: UTC·

Port Louis×St. Louis

Mauritius · MU
Port Louis
—:—
Indian/Mauritius·
No DST
United States · US
St. Louis
—:—
America/Chicago·
DST active

Port Louis is 9 hours behind St. Louis. Scrub a time, meet in the overlap, ship the invite — before the kettle boils.

◊ at a glance

Three numbers. The ones that decide the meeting.

01
Difference
9h behind
Port Louis vs St. Louis
02
Overlap
0h
Business hours 09:00 – 17:00
03
UTC offsets
GMT+4 / GMT-5
Mauritius · CDT
04
Flight
19h 41m
16,303 km · great-circle, non-stop cruise
◊ the overlap

When the world meets at work.

24-hour overlap
No overlap in working hours
Port Louis
—:—
0
3
6
9
12
15
18
21
St. Louis
—:—
15
18
21
0
3
6
9
12
Scrub a meeting time14:00 Port Louis
Same moment in St. Louis05:00 St. Louis
◊ hour by hour

Read the day in both zones.

Share this meeting
timezonepair.com/from/port-louis/to/st.-louis?t=14&a=A&d=2026-05-26&dur=60
14:00 Port Louis05:00 St. Louis
Full 24-hour reference
Port LouisSt. Louis
00:00
15:00St. Louis only
01:00
16:00St. Louis only
02:00
17:00
03:00
18:00
04:00
19:00
05:00
20:00
06:00
21:00
07:00
22:00
08:00
23:00
09:00Port Louis only
00:00
10:00Port Louis only
01:00
11:00Port Louis only
02:00
12:00Port Louis only
03:00
13:00Port Louis only
04:00
14:00Port Louis only
05:00
15:00Port Louis only
06:00
16:00Port Louis only
07:00
17:00
08:00
18:00
09:00St. Louis only
19:00
10:00St. Louis only
20:00
11:00St. Louis only
21:00
12:00St. Louis only
22:00
13:00St. Louis only
23:00
14:00St. Louis only
◊ travel essentials

Crossing the border. Money, language, plugs.

Money changes hands at the border: Port Louis uses the MUR (₨) and St. Louis uses the USD ($). Conversations can stay in English, which is official in both countries. Be careful behind the wheel: Port Louis drives on the left, St. Louis on the right.

Port Louis
Country
Mauritius
Capital
Port Louis
Currency
Mauritian rupee (MUR · ₨)
Language
English, French, Mauritian Creole
Calling code
+230
Drives on
Left
St. Louis
Country
United States
Capital
Washington, D.C.
Currency
United States dollar (USD · $)
Language
English
Calling code
+1
Drives on
Right
◊ common questions

Quick answers. Before you book the call.

What's the time difference between Port Louis and St. Louis?

Port Louis is 9 hours behind St. Louis. Port Louis runs on GMT+4 and St. Louis on GMT-5. The gap can shift by an hour when either side enters or leaves daylight saving — the live clocks above always reflect the current offset.

When's the best time to schedule a meeting?

Standard 09:00–17:00 workdays don't intersect. Most teams compromise with one side meeting early (before 09:00) or late (after 17:00).

Does daylight saving time change the difference?

Yes, if either city observes DST. When one side shifts and the other doesn't, the gap changes by one hour. The DST badges under each clock show whether each zone is currently shifted and when the next transition lands.

How far is Port Louis from St. Louis?

About 16,303 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 19h 41m, not counting airport time, winds, or routing around restricted airspace.

Can I send this meeting time as a calendar invite?

Yes. Pick a time on the slider above, open the meeting card, customize the title and duration, then download the .ics file. It imports cleanly into Google Calendar, Outlook, and Apple Calendar with the correct timezone attached.

What currency do Port Louis and St. Louis use?

Port Louis uses the Mauritian rupee (MUR, ₨); St. Louis uses the United States dollar (USD, $). Check the live rate before transferring money or paying with a card abroad — most banks add a 1–3 % FX margin on top of the mid-market rate.

How do I call Port Louis from St. Louis?

Dial the international prefix used by your carrier (often 011), then +230, then the local number — drop any leading zero of the city or mobile code. For free calls, WhatsApp, Signal, and FaceTime work over Wi-Fi regardless of country code.

What language is spoken in Port Louis and St. Louis?

Both Mauritius and United States count English among their official languages, so business meetings often skip translation. Port Louis also has French, Mauritian Creole; St. Louis adds no other official tongue.

Do Port Louis and St. Louis drive on the same side of the road?

No. Mauritius drives on the left, United States on the right. If you're renting, expect a learning curve on the first day — especially at roundabouts and when judging the centre of the lane.

◊ same region as Port Louis

Closer time, closer call. Pair St. Louis with another Indian city.

◊ keep going

One pair down. 299 cities to go.

Every pair in 300 cities runs the same clocks, the same overlap, the same one-click invite. Pick another.

PORT LOUIS · Indian/Mauritius
GMT+4 · -20.16°, 57.50°

ST. LOUIS · America/Chicago
GMT-5 · 38.63°, -90.20°

0h shared · 9h behind