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Get an overlapping interval of a set of time intervals

Posted 1 year ago
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I generate a set of time series data during the data analysis process. Want to know the time period(overlay interval) common to all-time series. What should I do the fastest?

dateRange = {DateInterval[{{{2019, 8, 25, 7, 3, 39.}, {
      2019, 11, 1, 7, 56, 11.}}}, "Instant", "Gregorian", 8.], 
   DateInterval[{{{2019, 8, 25, 7, 3, 58.}, {
      2019, 11, 1, 7, 58, 18.}}}, "Instant", "Gregorian", 8.], 
   DateInterval[{{{2019, 8, 25, 7, 2, 36.}, {
      2019, 11, 1, 7, 57, 2.}}}, "Instant", "Gregorian", 8.], 
   DateInterval[{{{2019, 8, 25, 7, 2, 28.}, {
      2019, 11, 1, 7, 56, 32.}}}, "Instant", "Gregorian", 8.], 
   DateInterval[{{{2019, 8, 25, 7, 5, 49.}, {
      2019, 11, 1, 7, 54, 10.}}}, "Instant", "Gregorian", 8.], 
   DateInterval[{{{2019, 8, 25, 7, 0, 12.}, {
      2019, 10, 30, 10, 35, 22.}}}, "Instant", "Gregorian", 8.], 
   DateInterval[{{{2019, 8, 25, 7, 0, 57.}, {
      2019, 11, 1, 7, 55, 0.}}}, "Instant", "Gregorian", 8.]};

I tried IntervalIntersection@dateRange The result is not as expected.

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The problem is that IntervalIntersection expects the intervals as separate arguments, not a List of intervals. Try

IntervalIntersection @@ dateRange
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