- AEON
- A long, long time
- Age
- Eternity
- Many a millennium
- A billion years
- A very long time
- An indefinitely long period of time
- Indefinite period
- Ages and ages
- 1 billion years
- ___ Flux (Peter Chung animated series)
- A very, very long time
- Ages
- Significant stretch
- Enormous stretch
- Many millennia (variant spelling)
- Immeasurable time
- Long, long time
- An eternity
- Big stretch
- Duration of an ice age
- Gigantic stretch
- Mind-boggling long time
- Quite a stretch
- Ice age length
- Incomprehensible span
- Unimaginably long stretch
- Seeming-forever stretch
- It's quite a long time
- Many millennia
- It's made up of many eras
- One billion years
- A million millennia
- Video game "__ Flux"
- Flux played by Charlize
- Quite some time
- Interminable time
- Long run
- A billion years, in astronomy
- Long time
- Seemingly forever?
- Semi-eternity?
- Long period of time
- ___ Flux (1990s animated series)
- ___ Flux (1990s MTV series)
- One of four in the history of the Earth
- About 22% of the Earth's life
- Common time for crosswords?
- The Phanerozoic, e.g.
- Stretch on a huge scale
- Unit that's too big to cover in history class?
- Almost unimaginable span
- Unit of mountain formation
- Universal unit
- Really long time span
- Billion years
- Immeasurably long time
- Loooong time
- ___ Flux (futuristic MTV cartoon)
- Millions of centuries
- Almost an eternity
- Many, many years
- ___ Flux (2005 Charlize Theron thriller)
- Quite a long time
- Big time?
- ___ Flux (Charlize Theron movie)
- Super-long time
- ___ Flux
- ___ Flux (MTV animated series of the '90s)
- Bloody long time
- Long time period
- Million-millennia period
- Really long time
- Very long time
- Two or more eras
- Quite a long stretch
- Near-eternity
- Geological time division
- 10 million centuries
- Ages upon ages
- Centuries on end
- Many ages
- Geological age
- Multiple millennia
- Quite a while
- Thousands of years
- Considerable age
- It feels like forever
- MTV sci-fi show "__ Flux"
- __ Flux: 1990s MTV series
- Long geological period
- At least two eras
- It's a long time
- Geological period
- Multiple eras
- Billion-year period
- Extremely long time
- Geologic time unit
- Long stretch
- Word from the Greek for "century"
- 1,000,000,000 years
- ___ Flux (animated sci-fi series)
- 2005 role for Charlize
- Long measure of time
- ___ Flux (2005 Charlize Theron movie)
- It's quite a stretch
- ___ Flux (2005 sci-fi film)
- Long stretch of time
- Indefinitely long period.
- A thousand ages.
- An age of the world.
- Geologic time.
- Many centuries.
- Geological time span.
- Years and years.
- Time immemorial.
- Time stretch.
- Years without end.
- A long time.
- Measureless time.
- Millenniums.
- Long period
- Infinite time
- Geological time
- Time period
- Ageless time
- Epoch upon epoch
- Period like a millennium
- Time unlimited
- Epochs upon epochs
- Gnostic power
- Age beyond belief
- Era after era after era
- Immeasurably long period
- Many, many epochs
- Period that appears endless
- Era after era
- Long, long period
- Eras upon eras
- Ages untold
- Millennia upon millennia
- Eternity's cousin
- Incomprehensible age
- Mind-boggling period
- Time out of mind
- Many millenniums
- Prolonged period
- Lots of time
- Eras on end
- Endless time period
- It's seemingly forever
- Time spent in line, seemingly
- Extended period
- Many years
- ___ Flux (onetime sci-fi series)
- Word derived from the Greek for "age"
- Endless years
- Long time: Var.
- Many a millennia
- Geological extent
- Time without end
- It seems like forever
- Very long stretch
- Astronomical unit
- Mighty long time: Var.
- Boundless time
- Extended time
- Almost eternity
- Coon's age
- It goes on and on and on
- With 64-Across, 2005 Charlize Theron title role
- ___ Flux (Charlize Theron film)
- Geological range
- Time in earth's history
- Part of the earth's history
- ___ Flux (Charlize Theron role)
- Forever and a day
- Many, many moons
- Unit in a geology book
- Division of geology
- Very long span
- MTV's "___ Flux"
- More than a millennium
- ___ Flux (1990s sci-fi series)
- ___ Flux (2005 film)
- Timeline swath
- ___ Flux (1990s animated sci-fi series)
- Long span of time
- Time spent at the DMV, it often seems
- __ Flux (2005 Charlize Theron movie based on an MTV series)
- Millions of years
- Very long time unit
- Time on end
- Untold eras
- Many, many millennia
- Countless centuries
- ___ Flux (2005 Charlize Theron film)
- Supernatural being
- A couple of eras
- Eternity, essentially
- Billion years, to a geologist
- Many a year
- A very long period of time
- Geological time period (Var.)
- Billion years (Var.)
- Geological time division (Var.)
- Long, long time (Var.)
- Many millennia (Var.)
- Longest division of geological time
- Spiritual being
- ___ Flux (2005 movie)
- ___ Flux (animated series)
- A very, very long time (Var.)
- Geological period (Var.)
- A million millennia (Var.)
- Immeasurable period of time (Var.)
- One billion years (Var.)
- Unimaginably long time (Var.)
- A billion years (Var.)
- A billion years, in astronomy (Var.)
- Million-millennia period (Var.)
- Mind-bogglingly long time (var.)
- ___ Flux (Old MTV cartoon)
- A long time (var.)
- Old animated heroine Flux
- Ages and ages and ages
- Forever and a day (Var.)
- Geological timespan (Var.)
- Long measure of time (Var.)
- Quite a long time (Var.)
- Two or more eras (Var.)
- Two or more of 36-Across (Var.)
- Longest division of geological time (Var.)
- One spelling of a billion years
- ___ Flux (Theron film)
- ___ Flux (Theron movie)
- 1,000 millennia (var.)
- A gazillion years: Var.
- Really long time: Var.
- Long time period: Var.
- Ages and ages: var.
- Geological span: var.
- Long geological time period
- ___ Flux (classic cartoon)
- Geological time period
- Eternity (Var.)
- Almost an eternity (Var.)
- Immeasurably long period of time (Var.)
- Immeasurable time (var.)
- Lo-o-o-ong time (Var.)
- Millions of centuries (Var.)
- Vast time span
- Long geological period (var.)
- Forever, seemingly (var.)
- Long, long time for a Brit?
- Long, long time period (var.)
- Endless years: var.
- ___ Flux (former MTV series)
- Vast span
- Astronomical measurement
- ___ Flux (sci-fi series)
- Many, many centuries
- Boundless stretch
- Milliards of years
- Multitude of eras
- Long, long time, in London
- A milliard years
- Many millennia, in Manchester
- Time spent at the licence agency, seemingly
- Seeming eternity, at Eton
- Long time, in London
- Long, long time, in Liverpool
