Octennial Pangalawa
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Octennial Millisecond
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Octennial Minuto
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Octennial Oras
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Octennial Araw
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Octennial Linggo
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Octennial Buwan
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Octennial Taon
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Octennial Dekada
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Octennial Siglo
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Octennial Milenyo
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Octennial Microsecond
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Octennial Nanosecond
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Octennial Picosecond
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Octennial Femtosecond
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Octennial Attosecond
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Octennial Iling
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Octennial Buwan (synodic)
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Octennial Taon (Julian)
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Octennial Taon (lukso)
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Octennial Taon (tropikal)
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Octennial Taon (sidereal)
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Octennial Araw (sidereal)
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Octennial Oras (sidereal)
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Octennial Minuto (sidereal)
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Octennial Pangalawa (sidereal)
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Octennial Dalawang linggo
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Octennial Septennial
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Octennial Nobenyal
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Octennial Quindecennial
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Octennial Quinquennial
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Octennial Oras ng Planck
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