Clean imported time offsets with INT and TRUNC

Beginner

Imported scheduling data often includes time offsets with decimal values, even when a team only wants whole minutes for cleanup and review. In this exercise, you'll clean a small batch of imported offsets and see why INT and TRUNC can produce different results when a value is negative.

INT rounds a number down to the next lower whole number. Its syntax is:

=INT(number)

TRUNC removes the decimal part of a number. Its syntax is:

=TRUNC(number, [num_digits])

For positive numbers, the results match. For negative numbers, they can differ. For example, INT turns -3.4 into -4, while TRUNC turns -3.4 into -3.

Your task

  1. Review the imported offset values in B2:B12.
  2. In column C, enter a formula that uses INT on the value from the same row.
  3. In column D, enter a formula that uses TRUNC on the value from the same row.
  4. Fill both columns through row 12.
  5. Compare the negative offsets to see where the two functions produce different results.

When you're done, columns C and D should show the cleaned whole-minute versions of every imported offset.

Need some help?

Hint 1

Both functions remove decimals, so start by choosing the function that belongs in each result column.

Hint 2

Check the negative values to tell the two functions apart. INT moves to the next lower whole number, while TRUNC only cuts off the decimal portion.

Hint 3

Use the imported offsets in B2:B12 as the source. Put the INT results in C2:C12 and the TRUNC results in D2:D12.

Related function(s)