| 1/1/1928, Sun | New Year's Day |
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| 1/9/1928, Mon | Epiphany Obs: Actual Observance Day |
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| 3/19/1928, Mon | St. Joseph's Day Obs |
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| 4/1/1928, Sun | Palm Sunday |
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| 4/5/1928, Thu | Maundy Thursday |
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| 4/6/1928, Fri | Good Friday |
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| 4/7/1928, Sat | Holy Saturday |
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| 4/8/1928, Sun | Easter |
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| 5/1/1928, Tue | Labor Day |
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| 5/21/1928, Mon | Ascension Obs: Actual Observance Day |
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| 6/11/1928, Mon | Corpus Christi Obs: Actual Observance Day |
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| 6/18/1928, Mon | Sacred Heart Obs |
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| 7/2/1928, Mon | St. Peter-St. Paul Day Obs: Actual Observance Day |
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| 7/20/1928, Fri | Independence Day |
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| 8/7/1928, Tue | Battle of Boyaca |
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| 8/20/1928, Mon | Assumption Obs: Actual Observance Day |
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| 10/15/1928, Mon | Hispanity Day Obs: Actual Observance Day |
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| 11/5/1928, Mon | All Saints' Day Obs: Actual Observance Day |
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| 12/8/1928, Sat | Immaculate Conception |
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| 12/24/1928, Mon | Christmas Eve |
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| 12/25/1928, Tue | Christmas Day |
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| 12/31/1928, Mon | New Year's Eve |
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