Phoenix
United States
--:-- --
MST · UTC-7 3 hours difference
Santiago
Chile
--:-- --
GMT-3 · UTC-4 Convert Phoenix (MST) to Santiago (GMT-3) Time — 3 hours apart
America/Phoenix · MST · UTC-7 | America/Santiago · GMT-3 · UTC-4 · 3 hours difference · 111 cities · DST applies
24-Hour Overlap Timeline
✅ Overlap: 9:00 AM–3:00 PM in Phoenix · 12:00 PM–6:00 PM in Santiago (6h window)
⚠ Santiago observes daylight saving time — offset may vary by up to 1 hour seasonally
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UTC → | ||||||||||||||||||||||||
| 🇺🇸 Phoenix UTC-7 | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p |
| 🇨🇱 Santiago UTC-4 | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p |
Both working Working Off hours Sleeping Now
Key Facts: Phoenix (MST) vs Santiago (GMT-3)
Time Gap
3h
Santiago ahead
May vary ±1h (DST)
DST Status
✅ Phoenix
No DST
⏰ Santiago: Observes DST
Cities in MST
48
Largest: Phoenix
4,065,338 pop.
Overlap Window
6h window
9:00 AM – 3:00 PM (MST)
12:00 PM – 6:00 PM (GMT-3)
Find Cities in Phoenix & Santiago Timezones
The MST and GMT-3 timezones are separated by 3 hours. Phoenix is the largest city in the America/Phoenix zone and Santiago is the largest in America/Santiago. Santiago observes daylight saving time — the difference may change by 1 hour seasonally. For scheduling between these regions, the key fact is: there are 6 hours of mutual business-hours overlap each day.
Best Times to Schedule Calls: Phoenix (MST) ↔ Santiago (GMT-3)
| Phoenix (MST) | Santiago (GMT-3) | Quality |
|---|---|---|
| 3:00 AM | 6:00 AM | ❌ |
| 4:00 AM | 7:00 AM | ❌ |
| 5:00 AM | 8:00 AM | ❌ |
| 6:00 AM | 9:00 AM | ❌ |
| 7:00 AM | 10:00 AM | ⚠️ |
| 8:00 AM | 11:00 AM | ⚠️ |
| 9:00 AM | 12:00 PM | ✅ |
| 10:00 AM | 1:00 PM | ✅ |
| 11:00 AM | 2:00 PM | ✅ |
| 12:00 PM | 3:00 PM | ✅ |
| 1:00 PM | 4:00 PM | ✅ |
| 2:00 PM | 5:00 PM | ✅ |
| 3:00 PM | 6:00 PM | ⚠️ |
| 4:00 PM | 7:00 PM | ⚠️ |
| 5:00 PM | 8:00 PM | ❌ |
| 6:00 PM | 9:00 PM | ❌ |
| 7:00 PM | 10:00 PM | ❌ |
| 8:00 PM | 11:00 PM | ❌ |
| 9:00 PM | 12:00 AM +1 day | ❌ |
Work hours defined as 09:00–18:00 local time. ✅ Both in work hours ⚠️ Borderline ❌ Outside work hours.
MST to GMT-3: Complete 24-Hour Time Conversion Table
| Phoenix (MST) | Santiago (GMT-3) | IST (UTC+5:30) |
|---|---|---|
| 12:00 AM | 3:00 AM | 12:30 PM |
| 1:00 AM | 4:00 AM | 1:30 PM |
| 2:00 AM | 5:00 AM | 2:30 PM |
| 3:00 AM | 6:00 AM | 3:30 PM |
| 4:00 AM | 7:00 AM | 4:30 PM |
| 5:00 AM | 8:00 AM | 5:30 PM |
| 6:00 AM | 9:00 AM | 6:30 PM |
| 7:00 AM | 10:00 AM | 7:30 PM |
| 8:00 AM | 11:00 AM | 8:30 PM |
| 9:00 AM | 12:00 PM | 9:30 PM |
| 10:00 AM | 1:00 PM | 10:30 PM |
| 11:00 AM | 2:00 PM | 11:30 PM |
| 12:00 PM | 3:00 PM | 12:30 AM |
| 1:00 PM | 4:00 PM | 1:30 AM |
| 2:00 PM | 5:00 PM | 2:30 AM |
| 3:00 PM | 6:00 PM | 3:30 AM |
| 4:00 PM | 7:00 PM | 4:30 AM |
| 5:00 PM | 8:00 PM | 5:30 AM |
| 6:00 PM | 9:00 PM | 6:30 AM |
| 7:00 PM | 10:00 PM | 7:30 AM |
| 8:00 PM | 11:00 PM | 8:30 AM |
| ← Date changes in Santiago → | ||
| 9:00 PM | 12:00 AM +1 | 9:30 AM |
| 10:00 PM | 1:00 AM +1 | 10:30 AM |
| 11:00 PM | 2:00 AM +1 | 11:30 AM |
IST (India Standard Time, UTC+5:30) shown as reference for Indian users. +1/−1 indicates a different calendar day.
48 Cities in Phoenix (MST) & 63 Cities in Santiago (GMT-3)
Phoenix & 47 more — Phoenix (MST, UTC-7)
- Phoenix, US 4.1M
- Tucson, US 880K
- Hermosillo, MX 856K
- Culiacan, MX 808K
- Mesa, US 507K
- Mazatlan, MX 501K
- Tepic, MX 426K
- Ciudad Obregon, MX 329K
- Guasavito, MX 320K
- Los Mochis, MX 298K
- Chandler, US 278K
- Gilbert, US 271K
- Nogales, MX 265K
- Heroica Nogales, MX 261K
- Glendale, US 250K
La Paz, MXScottsdale, USCabo San Lucas, MXEl Tezal, MXPeoria, USTempe, USSan Luis Rio Colorado, MXGuaymas, MXSurprise, USYuma, USSan Jose del Cabo, MXNavojoa, MXHeroica Guaymas, MXSan Tan Valley, USGoodyear, USBuckeye, USPrescott Valley, USAgua Prieta, MXAvondale, USSan Francisco, MXGuasave, MXFlagstaff, USHuebampo, MXCasas Adobes, USMaricopa, USHeroica Caborca, MXQueen Creek, USGuamuchil, MXPuerto Penasco, MXLake Havasu City, USCasa Grande, USMarana, USCatalina Foothills, US
Santiago & 62 more — Santiago (GMT-3, UTC-4)
- Santiago, CL 7.2M
- Concepcion, CL 720K
- Puente Alto, CL 574K
- Maipu, CL 522K
- La Florida, CL 367K
- Antofagasta, CL 349K
- Vina del Mar, CL 333K
- San Bernardo, CL 301K
- Valparaiso, CL 297K
- Temuco, CL 282K
- Las Condes, CL 250K
- Osorno, CL 250K
- Rancagua, CL 231K
- Penalolen, CL 216K
- Quilicura, CL 210K
Talca, CLCoquimbo, CLArica, CLLa Serena, CLIquique, CLLa Pintana, CLEl Bosque, CLPuerto Montt, CLChillan, CLTalcahuano, CLCopiapo, CLCalama, CLValdivia, CLMelipilla, CLQuilpue, CLColina, CLLos Angeles, CLCurico, CLRenca, CLConchali, CLVilla Alemana, CLOvalle, CLLa Granja, CLMacul, CLCoronel, CLAlto Hospicio, CLLo Barnechea, CLEspejo, CLBuin, CLSan Ramon, CLSan Joaquin, CLLa Reina, CLPenaflor, CLLos Cerrillos, CLSan Antonio, CLChiguayante, CLPadre Hurtado, CLPadre Las Casas, CLLinares, CLQuillota, CLPaine, CLSan Felipe, CLLos Andes, CLSan Fernando, CLTalagante, CLRengo, CLVillarrica, CLLa Calera, CL
⚠️ Daylight Saving Time Affects This Pair
| Timezone | DST? | Standard | Daylight |
|---|---|---|---|
| America/Phoenix | No | UTC-7 | — |
| America/Santiago | Yes | UTC-4 | UTC-3 |
During DST periods the time difference between these zones may be 4 hours instead of 3 hours. Always verify the current offset if scheduling calls near clock-change dates.