Template:MJD
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- Check the result at tycho.usno.navy.mil after this page. Usage
{{MJD}}
={{YMD2MJD}}
+{{dectime}}
.{{MJD|year | month | day|hours | minutes | seconds}}
converts a specified date.{{MJD|year}}
={{MJD|year | 01 | 01 | 00 | 00 | 00}}
.- Examples
{{MJD|-4712|1|1}}
= -2399999 (JD = -0.5, for proleptic Julian calendar date){{MJD|-4712|1|1|12}}
= -2399998.5 (Julian Day 0 at noon){{MJD|1858|11|17}}
= 0{{MJD|1969|12|31|23|59|59.98}}
= 40586.999999769{{MJD|1969|12|31|23|59|59.99}}
= 40586.999999884{{MJD|1970}}
= 40587{{MJD|2024}}
= 60310{{MJD|2024|01|01|00|00|00.01}}
= 60310.000000116{{MJD|2024|01|01|00|00|00.02}}
= 60310.000000231- Accuracy
- {{#expr:({{MJD|2007|01|01|00|00|01}}-{{MJD|2007|01|01|00|00|00}})*86400}} = 0.99999331869185, good enough for 1/100 seconds, but not milliseconds.
- {{
MJD2HMS|0.99999331869185/86400
}} = 00:00:01
See template:Dectime (edit•talk•links•history) and template:YMD2MJD (edit•talk•links•history) for details. Optional substitution works if all six parameters and subst=subst: are specified, or for the current date {{ subst:MJD|subst=subst:}}.