Could you explain what do you mean by "get epoch time"

This is what I meant. 

# create a DateTime object from an ISO timestring
my $isostr = '2021-10-09T11:13:57';    # jd 2459496.96802
my $dt     = DateTime::Format::ISO8601->parse_datetime($isostr);
my @phases = phasehunt($dt->epoch);
$logger->info("@phases");
my $start_epoch = $phases[0];
my $end_epoch   = $phases[4];
my $diff        = $end_epoch - $start_epoch;
my $hard_bottom = int($start_epoch);
$logger->info("integer bottom is $hard_bottom");

[download]

Output:

2021/10/14 13:49:52 INFO 1633518344.15928 1634095655.87543 1634741861.
+07993 1635451604.37235 1636060526.50686 
2021/10/14 13:49:52 INFO integer bottom is 1633518344

[download]

Anything numerical happens over an interval, and paying special attention to the bounds has a profound bearing on whether results are valid. I like to bound an interval with lub and glb integers to check results with familiar tools.

Thanks for your comments, I'm trying to get this written before before the interval has elapsed....

In reply to Re^2: iterating over time with DateTime to obtain values with Astro::Coords by Aldebaran
in thread iterating over time with DateTime to obtain values with Astro::Coords by Aldebaran

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.