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1978 Quarterly Calendar

1978 split into four 3-month calendars. Q1 starts on Sunday, January 1, 1978 and has 90 days; Q2 is the busiest quarter with 64 US working days, and Q4 the lightest with 61. Each quarter lists its dates, working days, ISO weeks and federal holidays.

Q1 1978January – March

90 days · 62 working days · W52 (1977)–W13

January 197820 work days
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February 197819 work days
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March 197823 work days
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Q2 1978April – June

91 days · 64 working days · W13–W26

April 197820 work days
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May 197822 work days
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June 197822 work days
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Q3 1978July – September

92 days · 63 working days · W26–W39

July 197820 work days
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August 197823 work days
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September 197820 work days
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Q4 1978October – December

92 days · 61 working days · W39–W52

October 197821 work days
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November 197820 work days
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December 197820 work days
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1978 Quarters at a Glance

QuarterDatesDaysWorking daysISO weeksFederal holidays
Q1Sun, Jan 1 – Fri, Mar 319062W52 (1977)–W13New Year's Day, MLK Day, Presidents' Day
Q2Sat, Apr 1 – Fri, Jun 309164W13–W26Memorial Day
Q3Sat, Jul 1 – Sat, Sep 309263W26–W39Independence Day, Labor Day
Q4Sun, Oct 1 – Sun, Dec 319261W39–W52Columbus Day, Veterans Day, Thanksgiving, Christmas Day

1978 Quarterly Calendar FAQ

When does each quarter of 1978 start and end?

Q1 runs from Sunday, January 1, 1978 to Friday, March 31, 1978 (90 days); Q2 runs from Saturday, April 1, 1978 to Friday, June 30, 1978 (91 days); Q3 runs from Saturday, July 1, 1978 to Saturday, September 30, 1978 (92 days); Q4 runs from Sunday, October 1, 1978 to Sunday, December 31, 1978 (92 days).

How many working days are in each quarter of 1978?

Q1 has 62, Q2 has 64, Q3 has 63, Q4 has 61 US working days (Monday to Friday minus federal days off). Q2 has the most and Q4 the fewest.

Which ISO weeks fall in each 1978 quarter?

Q1 runs from W52 (1977) to W13, Q2 runs from W13 to W26, Q3 runs from W26 to W39, Q4 runs from W39 to W52. Weeks that start in one quarter and end in the next appear in both.

Are these calendar quarters or fiscal quarters?

They are calendar quarters. The US federal fiscal year starts on October 1, so October to December 1978 (calendar Q4) is Q1 of federal fiscal year 1979.

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