https://github.com/geospace-code/sciencedates

Date conversions used in the sciences.
https://github.com/geospace-code/sciencedates

date-conversion fortran geoscience julia matlab python

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Date conversions used in the sciences.

• Host: GitHub
• URL: https://github.com/geospace-code/sciencedates
• Owner: geospace-code
• License: mit
• Created: 2017-02-08T16:42:17.000Z (over 8 years ago)
• Default Branch: main
• Last Pushed: 2021-12-29T04:56:01.000Z (over 3 years ago)
• Last Synced: 2025-04-12T18:07:03.849Z (2 months ago)
• Topics: date-conversion, fortran, geoscience, julia, matlab, python
• Language: Python
• Size: 85 KB
• Stars: 6
• Watchers: 2
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
# Science Dates & Times

[![image](https://zenodo.org/badge/81351748.svg)](https://zenodo.org/badge/latestdoi/81351748)

[![Language grade: Python](https://img.shields.io/lgtm/grade/python/g/scivision/sciencedates.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/scivision/sciencedates/context:python)

[![Actions Status](https://github.com/scivision/sciencedates/workflows/ci/badge.svg)](https://github.com/scivision/sciencedates/actions)

[![PyPi Download stats](http://pepy.tech/badge/sciencedates)](http://pepy.tech/project/sciencedates)

Date & time conversions used in the sciences.

The assumption is that datetimes are **timezone-naive**, as this is required in Numpy *et al* for `numpy.datetime64`.

## Install

```sh

python -m pip install sciencedates

```

## Usage

### Datetime => Year, DayOfYear

```python

import sciencedates as sd

T = '2013-07-02T12'

yeardoy, utsec = sd.datetime2yd(T)

```

Results in year,DayOfYear; UTC fraction of day [seconds]

> (2013102, 72000.0)

## Julia

Julia [examples](./julia) are provided

## Matlab / GNU Octave

Matlab / GNU Octave [examples](./matlab) are provided

## Fortran

Fortran [examples](./fortran) are provided.

For Python-like modern Fortran datetime, see

[Datetime-Fortran](https://github.com/wavebitscientific/datetime-fortran).