Atlantic Standard Time (AST)
Atlantic Standard Time (UTC-4)
The Atlantic Standard Time (AST) is a unit of timezones used in scientific, engineering, and practical contexts. Unit standardization in the field of timezones has evolved over centuries as international scientific bodies and engineering organizations developed consistent measurement frameworks. The International System of Units (SI) provides the modern foundation for most technical measurements, though legacy units from national and industrial traditions continue to be used alongside SI units in many fields. The Atlantic Standard Time is precisely defined to ensure consistent, reproducible measurements across laboratories and industries worldwide.
Accurate timezones measurement is critical in engineering, science, commerce, and everyday life. Using the correct unit and applying conversions precisely prevents errors that can be costly or dangerous in professional applications.
Conversions Involving Atlantic Standard Time
Hawaii Standard Time → Atlantic Standard Time
HST → AST
Alaska Standard Time → Atlantic Standard Time
AKST → AST
Pacific Standard Time → Atlantic Standard Time
PST → AST
Pacific Daylight Time → Atlantic Standard Time
PDT → AST
Mountain Standard Time → Atlantic Standard Time
MST → AST
Mountain Daylight Time → Atlantic Standard Time
MDT → AST
Central Standard Time → Atlantic Standard Time
CST → AST
Central Daylight Time → Atlantic Standard Time
CDT → AST
Eastern Standard Time → Atlantic Standard Time
EST → AST
Eastern Daylight Time → Atlantic Standard Time
EDT → AST
Atlantic Standard Time → Hawaii Standard Time
AST → HST
Atlantic Standard Time → Alaska Standard Time
AST → AKST
Atlantic Standard Time → Pacific Standard Time
AST → PST
Atlantic Standard Time → Pacific Daylight Time
AST → PDT
Atlantic Standard Time → Mountain Standard Time
AST → MST
Atlantic Standard Time → Mountain Daylight Time
AST → MDT
Atlantic Standard Time → Central Standard Time
AST → CST
Atlantic Standard Time → Central Daylight Time
AST → CDT
Atlantic Standard Time → Eastern Standard Time
AST → EST
Atlantic Standard Time → Eastern Daylight Time
AST → EDT
Atlantic Standard Time → Newfoundland Standard Time
AST → NST
Atlantic Standard Time → Brasília Time
AST → BRT
Atlantic Standard Time → Argentina Time
AST → ART
Atlantic Standard Time → Uruguay Time
AST → UYT
Atlantic Standard Time → Chile Standard Time
AST → CLT
Atlantic Standard Time → Venezuela Time
AST → VET
Atlantic Standard Time → Colombia Time
AST → COT
Atlantic Standard Time → Peru Time
AST → PET
Atlantic Standard Time → Greenwich Mean Time
AST → GMT
Atlantic Standard Time → Coordinated Universal Time
AST → UTC
Atlantic Standard Time → Western European Time
AST → WET
Atlantic Standard Time → Central European Time
AST → CET
Atlantic Standard Time → Central European Summer Time
AST → CEST
Atlantic Standard Time → Eastern European Time
AST → EET
Atlantic Standard Time → Eastern European Summer Time
AST → EEST
Atlantic Standard Time → West Africa Time
AST → WAT
Atlantic Standard Time → Central Africa Time
AST → CAT
Atlantic Standard Time → East Africa Time
AST → EAT
Atlantic Standard Time → Moscow Standard Time
AST → MSK
Atlantic Standard Time → Iran Standard Time
AST → IRST
Atlantic Standard Time → Gulf Standard Time
AST → GST
Atlantic Standard Time → India Standard Time
AST → IST
Atlantic Standard Time → Nepal Time
AST → NPT
Atlantic Standard Time → Bangladesh Standard Time
AST → BST
Atlantic Standard Time → Myanmar Standard Time
AST → MMT
Atlantic Standard Time → Indochina Time
AST → ICT
Atlantic Standard Time → Western Indonesian Time
AST → WIB
Atlantic Standard Time → China Standard Time
AST → CST
Atlantic Standard Time → Singapore Time
AST → SGT
Atlantic Standard Time → Hong Kong Time
AST → HKT
Atlantic Standard Time → Philippine Time
AST → PHT
Atlantic Standard Time → Australian Western Standard Time
AST → AWST
Atlantic Standard Time → Japan Standard Time
AST → JST
Atlantic Standard Time → Korea Standard Time
AST → KST
Atlantic Standard Time → Australian Central Standard Time
AST → ACST
Atlantic Standard Time → Australian Eastern Standard Time
AST → AEST
Atlantic Standard Time → New Zealand Standard Time
AST → NZST
Atlantic Standard Time → Fiji Time
AST → FJT
Newfoundland Standard Time → Atlantic Standard Time
NST → AST
Brasília Time → Atlantic Standard Time
BRT → AST
Common Uses of the Atlantic Standard Time
- •Scientific research — expressing timezones values in published studies and experimental data
- •Engineering design — specifying timezones requirements in technical drawings and calculations
- •Quality control — measuring and verifying timezones in manufactured products
- •Education — teaching timezones concepts in physics and engineering courses
- •Industry standards — meeting regulatory and specification requirements for timezones
Did You Know?
The International Bureau of Weights and Measures (BIPM) in Sèvres, France, is the custodian of the International System of Units (SI). The BIPM coordinates global measurement science and maintains the definitions of base units that underpin all scientific and industrial measurement. The Atlantic Standard Time is part of this global measurement framework that ensures a scientific result in one country means exactly the same thing when replicated in another. This traceability is essential in fields from pharmaceutical manufacturing to aerospace engineering where measurement errors can have serious consequences.