R Observatory
Search

chron

‹
2.3-63
  1. 2.3-6315 Jul 2026, current
  2. 2.3-6231 Dec 2024
  3. 2.3-612 May 2023
  4. 2.3-607 Mar 2023
  5. 2.3-5931 Jan 2023
  6. 2.3-584 Oct 2022
  7. 2.3-5730 May 2022
  8. 2.3-5618 Aug 2020
  9. 2.3-552 Feb 2020
  10. 2.3-5426 Aug 2019
  11. 2.3-539 Sep 2018
  12. 2.3-526 Jan 2018
  13. 2.3-517 Oct 2017
  14. 2.3-5020 Feb 2017
  15. 2.3-4917 Jan 2017
  16. 2.3-488 Dec 2016
  17. 2.3-4724 Jun 2015
  18. 2.3-4619 Jun 2015
  19. 2.3-4511 Feb 2014
  20. 2.3-441 Sep 2013
  21. 2.3-4314 Nov 2012
  22. 2.3-4221 Aug 2011
  23. 2.3-418 Aug 2011
  24. 2.3-4024 Jul 2011
  25. 2.3-397 Dec 2010
  26. 2.3-384 Oct 2010
  27. 2.3-3714 Sep 2010
  28. 2.3-3631 Aug 2010
  29. 2.3-355 Apr 2010
  30. 2.3-3417 Mar 2010
  31. 2.3-338 Nov 2009
  32. 2.3-324 Oct 2009
  33. 2.3-3110 Sep 2009
  34. 2.3-3018 Feb 2009
  35. 2.3-295 Feb 2009
  36. 2.3-285 Jan 2009
  37. 2.3-2717 Dec 2008
  38. 2.3-2614 Dec 2008
  39. 2.3-2512 Nov 2008
  40. 2.3-2418 Jul 2008
  41. 2.3-2320 May 2008
  42. 2.3-224 Mar 2008
  43. 2.3-2114 Feb 2008
  44. 2.3-207 Feb 2008
  45. 2.3-194 Feb 2008
  46. 2.3-1831 Jan 2008
  47. 2.3-1730 Jan 2008
  48. 2.3-1621 Dec 2007
  49. 2.3-1514 Sep 2007
  50. 2.3-1413 Jul 2007
  51. 2.3-1310 Jul 2007
  52. 2.3-1218 Jun 2007
  53. 2.3-113 May 2007
  54. 2.3-101 Feb 2007
  55. 2.3-916 Oct 2006
  56. 2.3-823 Sep 2006
  57. 2.3-710 Sep 2006
  58. 2.3-612 Aug 2006
  59. 2.3-514 Jul 2006
  60. 2.3-426 Jun 2006
  61. 2.3-312 May 2006
  62. 2.3-24 Feb 2006
  63. 2.3-113 Jan 2006
  64. 2.3-025 Oct 2005
  65. 2.2-3528 Apr 2005
  66. 2.2-3426 Feb 2005
  67. 2.2-336 Nov 2004
  68. 2.2-3215 Sep 2004
  69. 2.2-3128 May 2004
  70. 2.2-3019 May 2004
  71. 2.2-2931 Jan 2004
  72. 2.2-286 Nov 2003
  73. 2.2-2716 Jul 2003
  74. 2.2-2628 Jun 2003
  75. 2.2-2525 Jun 2003
  76. 2.2-2423 Apr 2003
  77. 2.2-2316 Jan 2003
  78. 2.2-2215 Dec 2002
  79. 2.2-213 May 2002
  80. 2.2-2031 Mar 2002
  81. 2.2-1927 Nov 2001
  82. 2.2-1821 Sep 2001
  83. 2.2-1720 Aug 2001
  84. 2.2-1615 Jul 2001
  85. 2.2-1520 Jun 2001
  86. 2.2-1415 Jun 2001
  87. 2.2-132 Jun 2001
  88. 2.2-1212 May 2001
  89. 2.2-1110 May 2001
  90. 2.2-106 Apr 2001
  91. 2.2-924 Mar 2001
  92. 2.2-824 Dec 2000
  93. 2.2-79 Aug 2000
  94. 2.2-622 Jul 2000
  95. 2.2-42 Jul 2000
  96. 2.2-328 Jun 2000
  97. 2.2-223 Jan 2000
  98. 2.1-729 Jul 1999
  99. 2.1-610 Apr 1999
CRAN

Chronological Objects which Can Handle Dates and Times

Record of 2.3-63Compare with 2.3-62LicencesSBOM

install.packages("chron")
CRAN 30-day downloads, method
43,747−4% down on the 30 days before, the worse direction

Provides chronological objects which can handle dates and times.

Maintainer
Kurt Hornik
Licence
GPL-2
Latest release
15 Jul 2026
First release
10 Apr 1999

Compare with another package

More details
Releases
99
Needs compilation
Yes
Needs R
>= 2.12.0
Task views (1)
Subjects (1) Method, Subjects
Cite

Package

Run in R for the authors' preferred citation:

citation("chron")
APA
Hornik, K., R Core Team, Grothendieck, G., & James, D. (2026). chron: Chronological Objects which Can Handle Dates and Times (Version 2.3-63) [Computer software]. https://doi.org/10.32614/CRAN.package.chron
About

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

APA
Balamuta, J. J. (2026). R Observatory: Metrics for chron version 2.3-63 [Data set]. HJJB, LLC. Data release v2026-10-26. https://doi.org/10.5281/zenodo.21843040
About

From data release v2026-10-26, which the citation names so these numbers can be found later.

All 13 check platforms pass.

  • r-devel-linux-x86_64-debian-clang

    The unreleased R on Linux, x86_64, debian-clang

    OK

    Version checked
    2.3-63
    Time taken
    43 s
  • r-devel-linux-x86_64-debian-gcc

    The unreleased R on Linux, x86_64, debian-gcc

    OK

    Version checked
    2.3-63
    Time taken
    33 s
  • r-devel-linux-x86_64-fedora-clang

    The unreleased R on Linux, x86_64, fedora-clang

    OK

    Version checked
    2.3-63
    Time taken
    29 s
  • r-devel-linux-x86_64-fedora-gcc

    The unreleased R on Linux, x86_64, fedora-gcc

    OK

    Version checked
    2.3-63
    Time taken
    28 s
  • r-devel-windows-x86_64

    The unreleased R on Windows, x86_64

    OK

    Version checked
    2.3-63
    Time taken
    133 s
  • r-oldrel-macos-arm64

    The previous release of R on macOS, arm64

    OK

    Version checked
    2.3-63
    Time taken
    50 s
  • r-oldrel-macos-x86_64

    The previous release of R on macOS, x86_64

    OK

    Version checked
    2.3-63
    Time taken
    80 s
  • r-oldrel-windows-x86_64

    The previous release of R on Windows, x86_64

    OK

    Version checked
    2.3-63
    Time taken
    69 s
  • r-patched-linux-x86_64

    The patched release of R on Linux, x86_64

    OK

    Version checked
    2.3-63
    Time taken
    36 s
  • r-release-linux-x86_64

    The current release of R on Linux, x86_64

    OK

    Version checked
    2.3-63
    Time taken
    37 s
  • r-release-macos-arm64

    The current release of R on macOS, arm64

    OK

    Version checked
    2.3-63
    Time taken
    35 s
  • r-release-macos-x86_64

    The current release of R on macOS, x86_64

    OK

    Version checked
    2.3-63
    Time taken
    80 s
  • r-release-windows-x86_64

    The current release of R on Windows, x86_64

    OK

    Version checked
    2.3-63
    Time taken
    60 s
  • 13 OK

Over time

No change since 5 Aug 2026

As a list (5)
ChangedWorst statusOKNotesWarningsErrors
5 Aug 2026OK13000
1 Aug 2026Note12100
17 Jul 2026OK13000
16 Jul 2026Note12100
10 Mar 2026OK14000

Since March 2026

Check results on CRAN

Total downloads in the last 30 days
47,302−1.1% down on the 30 days before, the worse directionIt is the sum of 5 channels: CRAN, r2u, autoCRAN, conda-forge and c2d4u.

CRAN rank

527 of 26,529

CRAN

43,747 downloads in the last 30 days

Rank
527 of 26,529
Change
−4% down on the 30 days before, the worse direction

It is in the total. Take it out

r2u

1,700 downloads in the last 30 days

Rank
666 of 30,526
Change
+56.7% up on the 30 days before, the better direction

It is in the total. Take it out

autoCRAN

132 downloads in the last 30 days

Rank
528 of 29,130
Change
−4.4% down on the 30 days before, the worse direction

It is in the total. Take it out

conda-forge

1,681 downloads in the last 30 days

Rank
769 of 3,828
Change
+70.1% up on the 30 days before, the better direction

It is in the total. Take it out

c2d4u, no longer updated

42 downloads in the last 30 days

Rank
526 of 7,575
Change
+10.5% up on the 30 days before, the better direction

It is in the total. Take it out

Over time

Compare downloads

Needs
2
Dependent packages
26
Suggested by
9
Needs (2)
  • graphics
  • stats
Installing it adds
0 packages, 0 KB of source
Of those, need compilation
0
Optional extras (3)
Dependent packages (26)
PackageTitleDownloads in 30 days
rugarchUnivariate GARCH Models38,093
sqldfManipulate R Data Frames Using SQL15,684
compareGroupsDescriptive Analysis by Groups2,462
RH2DBI/RJDBC Interface to H2 Database1,905
redcapAPIInterface to 'REDCap'1,201
wakefieldGenerate Random Data Sets1,174
qdapBridging the Gap Between Qualitative Data and Quantitative Analysis1,011
pmxToolsPharmacometric and Pharmacokinetic Toolkit921
qdapToolsTools for the 'qdap' Package814
ensembleBMAProbabilistic Forecasting using Ensembles and Bayesian Model Averaging813
RMAWGENMulti-Site Auto-Regressive Weather GENerator784
bea.RBureau of Economic Analysis API419
datadictionaryCreate a Data Dictionary356
StreamMetabolismCalculate Single Station Metabolism from Diurnal Oxygen Curves355
rGVAnalysis of Continuous Glucose Monitor Data335
dgaCapture-Recapture Estimation using Bayesian Model Averaging298
ImportExportImport and Export Data285
TideCurvesAnalysis and Prediction of Tides283
stppSimSpatiotemporal Point Patterns Simulation279
ClimIndClimate Indices278
TideTablesTide Analysis and Prediction of Predominantly Semi-Diurnal Tides264
eSIRExtended State-Space SIR Models250
ensembleMOSEnsemble Model Output Statistics248
BusinessDurationCalculates Business Duration Between Two Dates245
plgraphicsUser Oriented Plotting Functions238
PhysActBedRestMarks Periods of 'Bedrest' in Actigraph Accelerometer Data232
Functions
105
Public exports
26
Lines of R code
2,127
Median complexity
2
Functions (105)
Size and composition

Lines by kind (3,098)

KindLinesShare
R code2,12769%
Documentation81526%
Compiled code1565%

Lines by language

LanguageLinesShare
R2,12769%
Rd81526%
C1565%

Languages are counted from file extensions.

Files
32
R functions
102
Compiled functions
3
Object systems
S3: 64 methods
Complexity
Median
2
Mean
4.75
Highest
35
Median lines per function
11
About complexity

Cyclomatic complexity counts the independent paths through a function: 1 is a straight line, higher is harder to test. R functions only.

Call graph figures
R functions
102
Calls
105
Unconnected
38
Groups
1
Growth (99 releases)
Total lines by release
2,478 in version 2.1-63,098 on 15 Jul 2026
Release changes

The package was built and has no tests to run.

Lines of tests
0
Exports named in tests
0%
Test suite
Has tests
No
Test frameworks
No tests in this release
Test lines per line of code
0
Exports documented
100%
Arguments documented
76%
Return value documented
80%
Help pages with examples
92.9%
Examples run in checks
100%
Other documentation
README
Yes, 353 words
Release notes file
No
Help pages
14
Lines of documentation
815
Earlier names (1)
  • Kurt Hornik.

No repository on record

R releases
  • On CRAN
  • Release
VersionReleasedR
2.3-63 current15 Jul 20264.6.1
2.3-6231 Dec 20244.4.2
2.3-612 May 20234.3.0
2.3-607 Mar 20234.2.2
2.3-5931 Jan 20234.2.2
2.3-584 Oct 20224.2.1
2.3-5730 May 20224.2.0
2.3-5618 Aug 20204.0.2
Earlier versions (91)
VersionReleasedREvents
2.3-552 Feb 20203.6.2
2.3-5426 Aug 20193.6.1
2.3-539 Sep 20183.5.0
2.3-526 Jan 20183.4.3
2.3-517 Oct 20173.4.2
2.3-5020 Feb 20173.3.2
2.3-4917 Jan 20173.3.2
2.3-488 Dec 20163.3.2
2.3-4724 Jun 20153.2.1
2.3-4619 Jun 20153.2.1
2.3-4511 Feb 20143.0.2
2.3-441 Sep 20133.0.1
2.3-4314 Nov 20122.15.2
2.3-4221 Aug 20112.13.1
2.3-418 Aug 20112.13.1
2.3-4024 Jul 20112.13.1
2.3-397 Dec 20102.12.0
2.3-384 Oct 20102.11.1
2.3-3714 Sep 20102.11.1
2.3-3631 Aug 20102.11.1
2.3-355 Apr 20102.10.1
2.3-3417 Mar 20102.10.1
2.3-338 Nov 20092.10.0
2.3-324 Oct 20092.9.2
2.3-3110 Sep 20092.9.2
2.3-3018 Feb 20092.8.1
2.3-295 Feb 20092.8.1
2.3-285 Jan 20092.8.1
2.3-2717 Dec 20082.8.0
2.3-2614 Dec 20082.8.0
2.3-2512 Nov 20082.8.0
2.3-2418 Jul 20082.7.1
2.3-2320 May 20082.7.0
2.3-224 Mar 20082.6.2
2.3-2114 Feb 20082.6.2
2.3-207 Feb 20082.6.1
2.3-194 Feb 20082.6.1
2.3-1831 Jan 20082.6.1
2.3-1730 Jan 20082.6.1
2.3-1621 Dec 20072.6.1
2.3-1514 Sep 20072.5.1
2.3-1413 Jul 20072.5.1
2.3-1310 Jul 20072.5.1
2.3-1218 Jun 20072.5.0
2.3-113 May 20072.5.0
2.3-101 Feb 20072.4.1
2.3-916 Oct 20062.4.0
2.3-823 Sep 20062.3.1
2.3-710 Sep 20062.3.1
2.3-612 Aug 20062.3.1
2.3-514 Jul 20062.3.1
2.3-426 Jun 20062.3.1
2.3-312 May 20062.3.0
2.3-24 Feb 20062.2.1
2.3-113 Jan 20062.2.1
2.3-025 Oct 20052.2.0
2.2-3528 Apr 20052.1.0
2.2-3426 Feb 20052.0.1
2.2-336 Nov 20042.0.0
2.2-3215 Sep 20041.9.1
2.2-3128 May 20041.9.0
2.2-3019 May 20041.9.0
2.2-2931 Jan 20041.8.1
2.2-286 Nov 20031.8.0
2.2-2716 Jul 20031.7.1
2.2-2628 Jun 20031.7.1
2.2-2525 Jun 20031.7.1
2.2-2423 Apr 20031.7.0
2.2-2316 Jan 20031.6.2
2.2-2215 Dec 20021.6.1
2.2-213 May 20021.5.0
2.2-2031 Mar 20021.4.1
2.2-1927 Nov 20011.3.1
2.2-1821 Sep 20011.3.1
2.2-1720 Aug 20011.3
2.2-1615 Jul 20011.3
2.2-1520 Jun 20011.2.3
2.2-1415 Jun 20011.2.3
2.2-132 Jun 20011.2.3
2.2-1212 May 20011.2.3
2.2-1110 May 20011.2.3
2.2-106 Apr 20011.2.2
2.2-924 Mar 20011.2.2
2.2-824 Dec 20001.2
2.2-79 Aug 20001.1
2.2-622 Jul 20001.1
2.2-42 Jul 20001.1Licence: GPL
2.2-328 Jun 20001.1
2.2-223 Jan 20000.90.1
2.1-729 Jul 19990.64.2
2.1-610 Apr 19990.64