Day Count Convention Lookup

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If you are looking for a specific Day Cont Convention, you can use this online tool by entering a related keyword.

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Author: OpenGamma

Source: Day Counts

Day Count Conventions:

30/360: 30/360 ISDA, 30/360 U.S. Municipal
30E/360: 30E/360, 30/360 ISMA, 30/360 European, 30S/360 Special German, EBD/360, Eurobond
30E/360 ISDA: 30E/360 ISDA, 30E/360 German, German
30/360 US: 30U/360, 30/360 US, 30US/360, 30/360 SIA
Act/365: Actual/365 Fixed, Act/365F, English, AFI/365
Act/Act Bond: Act/Act ICMA, ISMA-99, ICM/Act

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2026-02-14, ∼2145🔥, 0💬

"30/360 US" - Test Cases
What test cases can be used to verify the 30/360 US Day Count Convention? To verify the 30/360 US Day Count Convention, we should consider the following test cases: Is Accrual Period EOM: No Maturity Date: 2066-02-15 EOM Adj # T1 T2 D1 D2 D1 D2 DiR n1 2026-01-15 2026-02-15 15 15 15 15 30 n2 2026-01-... 2026-02-14, ∼378🔥, 0💬

What Is "30/360"
What is the "30/360" Day Count Convention? 30/360 - 30/360 is a Day Count Convention used by the US agency and corporate bonds. 30/360 is also referred as 30/360 ISDA, 30/360 Bond Basis, 30/360 U.S. Municipal, 30A/360, 360/360, Bond Basis. 30/360 can be formally defined as: Day_Count_Factor(Y1,M1,D1... 2026-04-13, ∼353🔥, 0💬

"30/360 US" - Variations of EOM Rules
What are the variations of the EOM rule in the 30/360 US Day Count Convention? An important feature of the 30/360 US Day Count Convention is the EOM rule as highlighted below: Day_Count_Factor(Y1,M1,D1,Y2,M 2,D2)= DiR(Y1,M1,D1,Y2,M2,D2) / DiY(Y1,M1,D1,Y2,M2,D2) DiR(Y1,M1,D1,Y2,M2,D2) = 360×(Y2-Y1) +... 2026-03-22, ∼353🔥, 0💬

"30/360" - Day Count Examples by ISDA
What "30/360" Day Count examples provided by ISDA? ISDA (International Swaps and Derivatives Association) offers a large number of examples on how to calculate DiR(T1,T2) with the 30/360 Day Count Convention as shown below: Day_Count_Factor(Y1,M1,D1,Y2,M 2,D2)= DiR(Y1,M1,D1,Y2,M2,D2) / 360 DiR(Y1,M1... 2026-04-13, ∼294🔥, 0💬

CUSIP: 912797MH7 - US Treasury Bill, 0%, 2025-09-04
Where to find more information on CUSIP: 912797MH7 - US Treasury Bill, 0%, 2025-09-04 and its interest payments? Detailed information on CUSIP: 912797MH7 - US Treasury Bill, 0%, 2025-09-04 (52-Week ) and its interest payments are presented below. 2026-02-14, ∼265🔥, 0💬

CUSIP: 91282CJB8 - US Treasury Note, 5%, 2025-09-30
Where to find more information on CUSIP: 91282CJB8 - US Treasury Note, 5%, 2025-09-30 and its interest payments? Detailed information on CUSIP: 91282CJB8 - US Treasury Note, 5%, 2025-09-30 (2-Year ) and its interest payments are presented below. 2026-03-22, ∼230🔥, 0💬

CUSIP: 912797NT0 - US Treasury Bill, 0%, 2025-04-01
Where to find more information on CUSIP: 912797NT0 - US Treasury Bill, 0%, 2025-04-01 and its interest payments? Detailed information on CUSIP: 912797NT0 - US Treasury Bill, 0%, 2025-04-01 (17-Week ) and its interest payments are presented below. 2026-03-22, ∼226🔥, 0💬

CUSIP: 912828EW6 - US Treasury Note, 4.5%, 2016-02-15
Where to find more information on CUSIP: 912828EW6 - US Treasury Note, 4.5%, 2016-02-15 and its interest payments? Detailed information on CUSIP: 912828EW6 - US Treasury Note, 4.5%, 2016-02-15 (10-Year ) and its interest payments are presented below. 2026-04-13, ∼198🔥, 0💬

CUSIP: 91282CDY4 - US Treasury Note, 1.875%, 2032-02-15
Where to find more information on CUSIP: 91282CDY4 - US Treasury Note, 1.875%, 2032-02-15 and its interest payments? Detailed information on CUSIP: 91282CDY4 - US Treasury Note, 1.875%, 2032-02-15 (10-Year ) and its interest payments are presented below. 2026-04-13, ∼182🔥, 0💬

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