radio calls time format

[John Citizen]

what is the correct format to give time format in radio calls ? (position reports)

hour minutes
or
minutes only

Most people practice minutes on VHF and hours minutes format on HF, however occasionally I see and I am told otherwise.

Any references please.

I am aware that the Jeppesen's say hours and minutes only when making a special air (met) airport but it seems to be common practice that all HF reports are hours and minutes but I cannot find any reference to this.

[GlueBall]

Hours AND Minutes.

"POS-KLM745-54N030W/1420 F350 54N040W/1511 54N050W (Next)"

http://www.icao.int/EURNAT/EUR%20and%20NAT%20Documents/NAT%20Documents/NAT%20CC%20ICD/NAT%20Aeradio%201-4.pdf

[LeadSled]

JC,
Annex X, Vol.11 for the general principles and the ICAO RT Handbook for examples of usage.
See also UK CAP 413, which is generally a reproduction of the ICAO handbook.
In short, you only use the full hours and minutes if there is any chance of confusion.

[DaveReidUK]

Hours AND Minutes.

"POS-KLM745-54N030W/1420 F350 54N040W/1511 54N050W (Next)"

http://www.icao.int/EURNAT/EUR%20and...adio%201-4.pdf (http://apicdn.viglink.com/api/click?format=go&key=1e857e7500cdd32403f752206c297a3d&loc=http%3A%2F%2Fwww.pprune.org%2Ftech-log%2F542122-radio-calls-time-format.html&out=http%3A%2F%2Fwww.icao.int%2FEURNAT%2FEUR%2520and%2520NAT %2520Documents%2FNAT%2520Documents%2FNAT%2520CC%2520ICD%2FNA T%2520Aeradio%25201-4.pdf&ref=http%3A%2F%2Fwww.pprune.org%2Ftech-log-15%2F)The quoted document is an OLDI (On-Line Data Interchange) interface specification, nothing to do with voice radio communications.