I know from locally stored knowledge that:

-3 hours
is the time zone differential of
Chile Daylight Time
([fact: ["20037231@trueknowledge.com"]])

+1 hour
is the time zone differential of
British Summer Time
([fact: ["20030718@trueknowledge.com"]])

By calculation (generator: ["first_parameter@trueknowledge.com"]) I know that:

-3 hours and 0 minutes
is the first parameter of
-3 hours

1 hour and 0 minutes
is the first parameter of
+1 hour

By calculation (generator: ["strictequal1@trueknowledge.com"]) I know that:

January 1st 1, 01:01:01
is strictly equal to
January 1st 1, 01:01:01

-3 hours and 0 minutes
is strictly equal to
-3 hours and 0 minutes

1 hour and 0 minutes
is strictly equal to
1 hour and 0 minutes

By calculation (generator: ["timepoint_sum@trueknowledge.com"]) I know that:

December 31st 0 BC, 22:01:01
is the timepoint sum of
January 1st 1, 01:01:01 and -3 hours and 0 minutes

January 1st 1, 02:01:01
is the timepoint sum of
January 1st 1, 01:01:01 and 1 hour and 0 minutes

By calculation (generator: ["timepoint_difference@trueknowledge.com"]) I know that:

-4 hours, 0 minutes and 0 seconds
is the length of time between the timepoints
January 1st 1, 02:01:01 and December 31st 0 BC, 22:01:01

By calculation (generator: ["difference_between_lengths_of_time@trueknowledge.com"]) I know that:

-4 hours, 0 minutes and 0 seconds
is the difference between the scalar quantities
-3 hours and 0 minutes and 1 hour and 0 minutes