how to convert seconds to iso 8601 format in Lua?

Question

i want to convert seconds to iso 8601 format in Lua, But i'm not able to find it, can anyone help? ex: 60.001 secs --> PT1M0.001S

Have you tried writing code to do it? I don't think the built-ins are going to do it for you. — John Zwinck, Feb 21 '18 at 13:34

lhf · Answer 1 · 2018-02-25T11:14:08.537

0

Start with

t = os.date("*t",os.time({day=1, month=1, year=2000, hour=0, min=0, sec=60.001}))

Then build the string from the fields in t, subtracting 1 from t.day and t.month and 2000 from t.year. The call to os.time takes care of the arithmetic, which is the boring part, but unfortunately does not support fractions of seconds.

The code above worked before Lua 5.3 but it now raises an error when sec does not contain an integer. A better solution is

sec = 60.001
fsec = sec%1
sec = math.floor(sec)
t = os.date("*t",os.time({day=1, month=1, year=2000, hour=0, min=0, sec=sec}))
t.sec = t.sec + fsec

edited Feb 25 '18 at 11:14

answered Feb 21 '18 at 16:50

lhf

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i'm getting error as "field 'sec' is not an integer" for above solution. – sam Feb 22 '18 at 10:41

score -1 · Answer 2 · answered Feb 21 '18 at 13:58

-1

You want use only such time periods as 60s / 180 s.

If you will use timestamps, maybe that solution can help?

Timestamp to ISO 8601 in Lua

answered Feb 21 '18 at 13:58

A. Denis

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how to convert seconds to iso 8601 format in Lua?

2 Answers2