The question makes no sense because metric measure are standard measures. In all countries except recalcitrant countries like US, Burma and Liberia. And even in those countries, scientists usually use metric measure. When they don't - as the clowns at NASA found to their cost - they end up trashing the hugely expensive Mars Climate Orbiter.
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Time is not measure in metric or standard units. Seconds, hours, etc. are used everywhere and are not one or the other.
Please note that the metric system is the world-wide standard. If by "standard" you mean the Imperial system (the system commonly used in the USA), the similarities are that the systems are designed to measure, and that they both have units to measure the same type of thing, for example length/distance, area, volume, temperature, etc.
A standard can mean many things. In mathematics, the standard unit of length measurement in the metric system is the metre. In weight, the standard is the kilogramme. Basically a standard is an internationally recognised unit, by which all measurements in the same situation are compared.
Weight Watchers and EatSmart make really nice digital kitchen scales that measure in both. Most brands these days that are digital measure in both metric and US standard.
Mainly that it is an international standard. Also, calculations are easier in the metric system, because of the multiples based on powers of 10.