[FIG(quote)[
[FIGCAPTION[
[1] [CITE@en[Mission Elapsed Time - Wikipedia, the free encyclopedia]]
([TIME[2015-12-12 19:16:39 +09:00]] 版)
<https://en.wikipedia.org/wiki/Mission_Elapsed_Time>
]FIGCAPTION]

> The MET-clock is set to zero at the moment of liftoff and counts forward in normal days, hours, minutes, and seconds. For example, 2/03:45:18 MET means it has been 2 days, 3 hours, 45 minutes, and 18 seconds since liftoff.'''['''1''']''''''['''2''']'''

]FIG]


[FIG(quote)[
[FIGCAPTION[
[2] [CITE@en[Mission Elapsed Time - Wikipedia, the free encyclopedia]]
([TIME[2015-12-12 19:16:39 +09:00]] 版)
<https://en.wikipedia.org/wiki/Mission_Elapsed_Time>
]FIGCAPTION]

> When the shuttle visits ISS the ISS-crew usually adjusts their workday to the MET clock to make work together easier. 

]FIG]


[3] [CITE[Atlas V N22 - Starliner OFT (uncrewed) - 20 Dec 2019 (11:36 UTC) - DISCUSSION]]
([TIME[2019-12-26 14:44:29 +09:00]])
<https://forum.nasaspaceflight.com/index.php?topic=43958.860>


[4] [[打ち上げ]]からの[[時刻]]を T+[VAR[h]]:[VAR[m]]:[VAR[s]] のように表記することがしばしばあります。