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18-MINUTE GUIDEPRIMARY SOURCES REVIEWED 13 AUGUST 2026ALL CHARTS AND VALUES FICTIONAL
01
START WITH THE FIELDS

One event card contains several different comparisons.

Read the full event name before the coloured impact icon. “CPI” might mean headline or core, month-on-month or year-on-year, seasonally adjusted or unadjusted. Those are different series. Impact colours are normally the calendar vendor's classification, not a rating issued by the statistical agency.

A fictional event card. Calendar layouts differ, but these fields do different jobs.
USDConsumer price index, month on month
VENDOR TAG: HIGH
Scheduled
13:30 / Europe-London
Previous
0.1% revised from 0.2%
Consensus
0.2%
Actual
0.4%
FICTIONAL VALUES / NOT A LIVE RELEASE
  1. Currency tagWhich economy is directly associated with the release—not a promise about direction.
  2. Time and zoneThe conversion is only useful if both the source timezone and your display timezone are known.
  3. Previous and revisionWhat was first reported can differ from what is now recorded for the prior period.
  4. ConsensusAn outside forecast summary whose contributors and cut-off can vary by provider.
  5. ActualThe released headline. Check the unit, adjustment and report detail before comparing it.
  6. Impact tagA vendor classification, not an official agency rating or a guarantee of volatility.

Your first check is therefore semantic: which exact series, period, unit and adjustment is this row showing? Only then is the actual-versus-consensus comparison meaningful.

02
THREE CLOCKS, NOT ONE

Record the source time, display time and decision time.

A

Source clock

The time and timezone named by the releasing agency: for example ET, CET or UK local time.

B

Calendar clock

The timezone selected in your calendar account or browser. Confirm whether it converts automatically.

C

Trading clock

The timezone used in your written rule, journal and screenshots. Name it rather than writing “London time”.

Official schedules can change. BLS says its release calendar is updated as needed, while ONS says dates are pre-announced through its release calendar. Use the agency page on the day you plan—not a screenshot copied weeks earlier. [1][10]

Daylight saving adds a second trap: the UK and US do not always change clocks on the same weekend. GOV.UK publishes the UK clock dates, but your workflow should still store a named timezone and recheck the converted release time. [13]

WRITE THISOfficial: 08:30 ET → Calendar: 13:30 Europe/London → Rule: no new orders T−10 to T+10
03
EXPECTATION VERSUS DATA

Previous, revised, consensus and actual are not interchangeable.

PREVIOUS

The earlier published prior-period value

Preserve the figure that was visible before release. It forms part of the information set traders had.

REVISED

The agency's updated prior-period value

A revision can change the starting point. Record “previous as first published” and “previous now revised” separately.

CONSENSUS

An outside forecast summary

Usually a mean or median collected from forecasters. It is not normally produced by the releasing agency, and providers may differ.

ACTUAL

The newly released official headline

Compare like with like: same series, period, unit and adjustment. Then open the report for components and notes.

Revisions are normal statistical work, not automatically an error. BEA describes advance, second and third GDP vintages as progressively incorporating more complete data; ONS explains that revisions can reflect later data, seasonal factors, benchmarking or methods. [5][11]

Some series also have specific revision rules. BLS, for example, recalculates CPI seasonal factors and can revise seasonally adjusted indexes for prior years. The correct question is not “can this number change?” but “what does this series' methodology say can be revised, and when?” [3]

04
KNOW WHAT IS BEING MEASURED

Five release families ask five different questions.

What to read beyond the headline
FamilyTypical questionsCommon calendar trap
InflationHeadline or core? Monthly or annual? Which weights and seasonal treatment?Comparing an annual consensus with a monthly actual, or ignoring a large component.
LabourJobs, unemployment, participation, earnings, hours—and which survey?Treating one headline as the whole labour report or ignoring prior-month revisions.
GDPReal or nominal? Annualised or quarter-on-quarter? Advance, second or third vintage?Reading an early estimate as final or comparing unlike annualisation conventions.
SurveysCurrent or expected conditions? Diffusion index or level? Collection window and sample?Reading a positive diffusion index as the size of output growth.
Central bankRate, vote, statement, projections, balance-sheet decision and guidance?Stopping at “unchanged” when the vote, path or press conference changes the message.

The BLS Employment Situation explicitly combines household and establishment surveys, so payroll change and unemployment rate do not come from one identical sample. [2] BEA labels GDP releases by vintage, while its official schedule can place several related reports at the same time. [4]

Survey indexes need their own reading rules. The Philadelphia Fed user guide distinguishes current and future diffusion indexes; diffusion measures breadth of reported increase versus decrease, not the percentage change in factory output. [12]

05
TRANSLATE THE CURRENCY TAG

A pair is a relationship, so direction is always relative.

BASEEUR/USDQUOTE

EUR/USD = the number of US dollars quoted for one euro.

PAIR RISES

EUR strengthened relative to USD

This can mean euro strength, dollar weakness, or both. The chart alone does not assign the cause.

PAIR FALLS

EUR weakened relative to USD

This can mean dollar strength, euro weakness, or both. A USD-tagged event affects only one side directly.

A higher-than-consensus US inflation print might be interpreted as raising expected US rates and could coincide with a lower EUR/USD. That is a scenario, not a law. If the detail is softer, the prior value is revised, the surprise was already priced, risk sentiment dominates or liquidity is thin, the response can be small, two-sided or reversed.

Translate in two steps
  1. What might the release change about expectations for the tagged currency?
  2. Did the pair's completed price action confirm relative strength or weakness after costs?
06
ONE MEETING, SEVERAL RELEASES

The decision headline may be only the first scheduled stage.

1

Decision

Rate and any balance-sheet or implementation action.

2

Statement and vote

Rationale, dissent, language changes and conditions.

3

Forecast material

Projections or report when scheduled for that meeting.

4

Press conference

Opening explanation and questions that can alter interpretation.

Official calendars make the separation visible. The Federal Reserve calendar links the statement, projection material where scheduled, press conference and later minutes; a 2026 calendar page lists the meeting and press conference as separate timed entries. [6][7] The ECB press-conference page illustrates the same structure by listing the policy decision before the press conference. [8]

The Bank of England's event schedule similarly lists the Monetary Policy Summary, minutes, Monetary Policy Report and related events. The practical lesson is simple: mark every scheduled stage and decide whether your no-trade window covers the whole sequence.[9]

07
FICTIONAL WORKED EXAMPLE

A positive USD surprise still does not define an EUR/USD entry.

EVENTFictional US CPI m/m
PREVIOUS0.1% revised from 0.2%
CONSENSUS0.2%
ACTUAL0.4%
HEADLINE SURPRISE+0.2 percentage points

The narrow observation is “actual inflation was 0.2 percentage points above this fictional consensus.” A possible interpretation is that markets may reduce expectations for near-term US easing, which can support USD. None of that supplies an entry price, stop, acceptable spread, completed-candle trigger or proof that the interpretation is new to the market.

FICTIONAL EUR/USD / 5-MINUTE VIEWOutcome A: initial EUR/USD drop holds

The first event candle breaks the pre-release range; later closes remain below the range rather than immediately reclaiming it.

What can be recorded: pre-release range, release-candle high and low, maximum spread, first completed close outside the range, retest behaviour and whether a written trigger existed.

FICTIONAL EUR/USD / 5-MINUTE VIEWOutcome B: the first drop fully reverses

EUR/USD spikes lower, then completed candles reclaim the range and move above it. The headline surprise did not produce a durable dollar-strength move.

What can be recorded: the same facts as Outcome A, plus the time of range reclamation, any revised or offsetting details, and whether an attempted entry would have suffered slippage.

A / HOLD

Lower and stays lower

Consistent with relative USD strength, but a method still needs a trigger, invalidation and cost filter.

B / REVERSE

Lower, then above the range

Could reflect details, revisions, positioning, another currency story or a thin first reaction.

C / NO EDGE

Wide spread and overlapping candles

A clear headline can coexist with unusable execution and no completed price signal.

08
TURN THE CALENDAR INTO A ROUTINE

Plan before release; observe after release.

BEFORE / T−30 OR EARLIER

Build the event sheet

  • Open the official source and confirm date, time and timezone.
  • Write the exact series, unit, adjustment, previous and revision.
  • Record consensus source and its retrieval time.
  • Mark pair, pre-release range and existing positions.
  • Set the no-new-order window and maximum acceptable spread.
  • Define separate hold, reversal and no-trade observations.
DURING / EMBARGO LIFTS

Do less, not more

  • Use the official release for actual and revised data.
  • Do not assume the first quote is a stable executable price.
  • Watch spread, missing ticks, gaps and order behaviour.
  • If your rule prohibits entry, record rather than improvise.
  • For central banks, keep later scheduled stages visible.
AFTER / FIXED OBSERVATION POINT

Capture what survived

  • Wait for the candle or time interval specified in the plan.
  • Record first-reaction high/low and completed closes.
  • Save actual, revised previous and relevant components.
  • Log spread, slippage and any gap using platform evidence.
  • Grade rule compliance separately from P&L.
  • Do not rewrite the method from one dramatic event.

An embargo means the official material is held until its stated release time. The current BLS Employment Situation page, for example, labels the material embargoed until the scheduled ET time and publishes technical notes with the release. Treat the source publication—not a social post—as the data record.[2]

Why execution rules belong beside the calendar

Around a scheduled release, available quotes can move quickly, bid–ask spreads can widen, stop or market orders can fill away from the last visible price, and a chart can jump between ticks. Leverage magnifies the account effect. The FCA classifies CFDs, including rolling spot FX, as high-risk products and requires specific retail protections and warnings. [14]

SPREAD

Record bid–ask width, not only the mid-chart candle. A visually valid break can be outside your tested cost limit.

SLIPPAGE

Record requested and filled prices. A stop controls the instruction, not the existence of the next available quote.

GAP / THIN TICKS

Plan what invalidates an order when price crosses levels without trading smoothly through every displayed increment.

NO-TRADE WINDOW

Define an exact start and end or a condition such as “one completed M15 candle and spread back below X”.

PRIMARY SOURCES

Official pages used for this guide

Checked 13 August 2026. Schedules and methodologies can change; open the source again before a release.

  1. US Bureau of Labor Statistics — Employment Situation release scheduleDates, release times and calendar-update note.
  2. US Bureau of Labor Statistics — Employment SituationEmbargo wording, household/establishment survey distinction and technical release structure.
  3. US Bureau of Labor Statistics — CPI seasonal adjustmentSeasonal-factor recalculation and revision treatment.
  4. US Bureau of Economic Analysis — release scheduleOfficial timing and named GDP estimate vintages.
  5. US Bureau of Economic Analysis — GDP release additional informationAdvance, second and third estimates and incomplete early source data.
  6. Federal Reserve — FOMC calendars and informationStatements, projection materials, press conferences and later minutes.
  7. Federal Reserve — September 2026 calendarSeparate scheduled meeting and press-conference entries.
  8. European Central Bank — monetary-policy press conferenceDecision and press-conference sequence.
  9. Bank of England — upcoming eventsMonetary Policy Summary, minutes, report and related event timing.
  10. Office for National Statistics — release practice policyPre-announcement and scheduled release practice.
  11. Office for National Statistics — National Accounts revisions policyReasons and windows for scheduled revisions.
  12. Federal Reserve Bank of Philadelphia — survey user guideCurrent/future diffusion-index interpretation.
  13. GOV.UK — when the clocks changeUK GMT/BST clock-change explanation and dates.
  14. Financial Conduct Authority — contracts for differencesRolling spot FX scope, leverage limits and retail risk context.
FAQ

Economic-calendar questions traders ask first

Does a better-than-forecast release always strengthen a currency?

No. Direction depends on which currency is affected, what the market had already priced, revisions and report details, policy expectations, positioning, liquidity and the response in the other currency. Surprise describes a comparison with consensus; it is not an entry instruction.

What is the difference between previous and revised?

Previous is the earlier published value for the prior period. Revised is an official update to that value. A calendar may replace or annotate the previous number after revision, so retain both when reviewing what traders knew before the release.

Is the consensus number official?

Usually not. Consensus is typically a mean or median of outside forecasts collected by the calendar provider or another survey. Providers can use different contributors, cut-off times and summary methods. The releasing agency publishes the actual statistic, not the market consensus.

Which timezone should I use for an economic calendar?

Use one named timezone consistently, record the timezone attached to the official source, and recheck conversions around daylight-saving transitions. Do not rely on a remembered London-versus-New-York offset because their clock-change dates can differ.

How long should a no-trade window be around news?

There is no universal duration. A testable rule might prohibit new orders from a stated number of minutes before release until a stated condition after release, such as one completed candle and a normalised spread. Choose the rule before testing and record filtered setups.

Why can the first move reverse after a central-bank decision?

A rate decision can be followed by a statement, vote split, projections and press-conference answers. The first move may reflect the headline; later moves can reflect guidance, nuance, positioning and changing liquidity. Treat each scheduled stage as part of one event sequence.