A	B	C	D	E	F	G	H	I	J	K	L	M	N
2
3		DayCount and Periods
4
5		All assuming a timeperiod
6		From	To
7		29 Feb 04	31 Oct 04						TimePeriod Length
8									Years	Days	Days
9		From	To	DayCount	Periods				TpYX	TpDX	Arithmetical
10
11	(1)	These  amount to same thing, using Decimal Month:
12
13		29 Feb 04	31 Oct 04	Omitted	Omitted				0.6669	245	245	in advance, quarterly (1Jan,1Apr,1Jul,1Oct)
14		29 Feb 04	31 Oct 04	5					0.6669	245	245	in advance, quarterly (1Jan,1Apr,1Jul,1Oct)
15		29 Feb 04	31 Oct 04	5	+1.01	+7.01			0.6669	245	245	in advance, Jan 1 Jul 1
16					Periods Not Used			LongHand:	0.6669
17
18	(2)	These examples of ACT/365 all amount to the same:
19
20		29 Feb 04	31 Oct 04	3	Omitted				0.6712	245	245	Actual Days/365.
21		29 Feb 04	31 Oct 04	3					0.6712	245	245	Actual Days/365.
22		29 Feb 04	31 Oct 04	3	+5.15	+11.15			0.6712	245	245	Actual Days/365.
23					Periods Not Used			LongHand:	0.6712
24
25	(3)	These examples of 30/360 all amount to the same:
26
27		29 Feb 04	31 Oct 04		Omitted				0.6667	240	245	30/360 (PSA).
28		29 Feb 04	31 Oct 04						0.6667	240	245	30/360 (PSA).
29		29 Feb 04	31 Oct 04		+5.15	+11.15			0.6667	240	245	30/360 (PSA).
30					Periods Not Used			LongHand:	0.6667
31								Excel:	0.6667	240
32	(4)	These examples of ACT/ACT (in period) are the same:
33
34		29 Feb 04	31 Oct 04	6	+4				0.6694	245	245	in advance, quarterly (1Jan,1Apr,1Jul,1Oct)
35		29 Feb 04	31 Oct 04	6	-4				0.6694	245	245	in arrear, quarterly (1 April payment of Jan-Mar accrual)
36		29 Feb 04	31 Oct 04	6	+1.01	+4.01	+7.01	+10.01	0.6694	245	245	in advance, Jan 1 Apr 1 Jul 1 Oct 1
37		29 Feb 04	31 Oct 04	6	-3.31	-6.30	-9.30	-12.31	0.6694	245	245	in arrear, Mar 31 Jun 30 Sep 30 Dec 31
38
39	(5)	Now let's look at the different DayCount options:
40
41		29 Feb 04	31 Oct 04						0.6667	240	245	30/360 (PSA).
42		29 Feb 04	31 Oct 04	1					0.6694	245	245	Actual/Actual (365 or 366).
43		29 Feb 04	31 Oct 04	2					0.6806	245	245	Actual Days/360.
44		29 Feb 04	31 Oct 04	3					0.6712	245	245	Actual Days/365.
45		29 Feb 04	31 Oct 04	4					0.6694	241	245	30/360 (European).
46		29 Feb 04	31 Oct 04	5					0.6669	245	245	Actual Days/Actual Days In Month ('Decimal Year').
47		29 Feb 04	31 Oct 04	6	+1.01	+4.01	+7.01	+10.01	0.6694	245	245	Actual/Actual (Within Period).
48		29 Feb 04	31 Oct 04	6	-3.31	-6.30	-9.30	-12.31	0.6694	245	245	Actual/Actual (Within Period).
49		29 Feb 04	31 Oct 04	6	+1.23	+4.23	+7.23	+10.23	0.6701	245	245	Actual/Actual (Within Period).
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